LA County Trial Winter Bird Atlas
Dec 2021 to
Feb 2022
Dec 2021 to Feb 2022
Get ready for the Los Angeles County Winter Bird Atlas! This is a trial atlas that involves a survey of wintering birds in thirteen “blocks” that were selected to cover the various types of habitat in Los Angeles County. The survey runs from December 1, 2021 through February 15, 2022. We plan to follow up with a much more ambitious project in several years (possibly 2024-2025 or 2025-2026): a winter atlas covering the entire county.
The following interactive map shows the blocks that will be covered in this trial atlas, and the eBird hotspots in each block:
Below is the same map, but in satellite view instead of street view:
And here is another map, with checklists entered as of Jan 12. (Note that due to Google Maps limitations, not all the checklists show up)
Goals
Preliminary preparations are underway for the second Los Angeles County Bird Atlas, which we hope to begin in 2025. In 1995-1999 we conducted the first Los Angeles County Breeding Bird Atlas (Allen et al. 2016), but with the second Atlas, we seek to conduct a winter atlas as well, which we have not done before.
In preparation for the winter atlas, and to familiarize ourselves with winter protocols, use of eBird for data entry, and to identify and solve logistical issues, we’re going to conduct a trial survey in the winter of 2021-2022 with a subset of blocks previously used in the 1995-1999 Atlas.
Protocols
Survey Period: December 1, 2021-February 15, 2022.
eBird will be our principal tool for data entry. eBird will enable us to track progress quickly and will require considerably less work than manually entering data submitted by email or regular mail.
Our trial winter atlas will use 13 5.8 km x 4.6 km (3.6 mile x 2.9 mile) blocks, following the convention adopted in the 1995-1999 Atlas by Allen et al. (2016). Each block was obtained by dividing the United States Geological Survey 7.5’ topographic rectangles for the county into six regions of equal area. The 2021-2022 winter survey is a practice run and we will not attempt to survey all 400+ blocks that were included in the 1995-1999 Atlas.
The 13 trial blocks cover most of the major habitat types in Los Angeles County and also cover all but one of the larger 12 regions utilized in the Atlas from 1995-1999. We wanted to strike a balance between covering as many habitats as possible while also keeping the number of trial blocks to a manageable number.
A key rationale for conducting the trial winter atlas is to assess the number of survey hours necessary to achieve a reasonable level of completeness for each block. For this trial winter atlas, we want a minimum of 20 HOURS to designate a block as complete.
The 20 hours will consist entirely of birding during the day but we also welcome additional observations obtained at night, which we define as more than 20 minutes after sunset or more than 40 minutes before sunrise. Time contributed at night does not count toward the 20 hours necessary for completing a block.
The map on this website outlines the trial blocks in purple. You can zoom in to see the details of each block in either a street view or as a satellite view.
To contribute to the trial winter atlas, simply go to one of the atlas blocks, use normal ebird protocols to keep track of the numbers of each species you find, and then enter the data either using the eBird phone app or on a computer. Please enter “complete” lists that have specific start and stop times. This allows us to track the number of hours of effort in each block. Traveling, stationary, and areal are all examples of complete lists. Incidental checklists are also welcome but by definition they do not count toward the 20 hours (but the species documented will be recorded).
Group counts: for timekeeping purposes, we count the time of each group as one list (following the protocol used for Christmas Bird Counts). Thus, if a group of three people spend one hour in an area, that counts as one hour, not three.
In some instances it will be necessary to pay careful attention to block boundaries because some popular eBird hotspots are just outside or inside block edges (more on this below).
The trial blocks were chosen partly to avoid locations with very active hotspots (Piute Ponds, Malibu Lagoon, Bonelli Park, etc.) that already receive extensive coverage. However, a few of the blocks have hotspots such as the Caltech campus, the lower Arroyo Seco, and Zuma Beach that get decent amount of coverage, but other blocks are sparsely covered.
Surveys in multiple blocks are encouraged: there no need to limit efforts to only one. For this trial atlas, we are NOT asking people to formally sign up for any particular block. Due to our use of eBird, we will monitor progress toward completion on a weekly basis, so we’ll know quickly if some blocks are not getting coverage. It is also fine if blocks receive more than 20 hours of eBird lists. We will post results on the Los Angeles Birders website on a weekly basis.
We recommend having a map with you in the field to know your location on a block. There are several ways of doing this:
- (easiest) While in the field, go to this website on your smartphone.
Go to the map, and click on the
icon in the upper-right corner of the map, which
will open up the full map on your phone. Then click on
“open in app” at the bottom. This will open the map in the Google Maps app
on your phone. You will be able to pan and zoom, you can see all the block
boundaries and hotspots, and your GPS location is shown as a big blue dot. - The previous method won’t work if there is poor cell reception in your block. So you can take screenshots from the desired portion of the map ahead of time, and either print out hardcopies or save the screenshots on your phone. Screenshots (in pdf format) are available by clicking on the block name in the table of blocks below.
- If you know how to use kmz files in mapping software, you can download this kmz file for the block boundaries, you can download this kmz file for the hotspots, and then you can use those files in Google Maps, Google Earth, or other software of your choice.
We also seek to determine how many species are present in each block during the winter, but we do not have target numbers that we expect to reach.
None of the trial blocks was affected in a significant way by the Bobcat Fire closure, which is scheduled to expire on April 1, 2022.
Identifications can be made visually or by sound, and as always, rare birds require documentation.
We will check eBird data and update our progress weekly on the Los Angeles Birders website. We may also hold informal Zoom meetings every 2-3 weeks to discuss progress, answer questions, and hear your suggestions.
Detailed information about each trial block
Definitions:
- NE = northeast
- NW = northwest
- CE = center east
- CW = center west
- SE = southeast
- SW = southwest
The following table shows the correspondence between the names of the blocks in the trial atlas, the names used in the Breeding Bird Atlas (Allen et al. (2016)), and the Christmas Bird Count circles (if any) that contain or overlap each block. Clicking on the block name downloads a PDF map of the block; but it may be easier to get the block map on your phone.
| Block | Allen et al. (2016) notation | CBC Overlap | |
|---|---|---|---|
| LON CE | Long Beach 4 | Region 1 | Long Beach |
| TOP CE | Topanga 4 | Region 2 | Los Angeles: only a bit |
| POI SW | Point Dume 5 | Region 2 | Malibu: sliver on the SW |
| SOU NW | South Gate 1 | Region 3 | |
| SAD NW | San Dimas 1 | Region 4 | Pomona |
| SAF SW | San Fernando 5 | Region 5 | San Fernando |
| SAF NE | San Fernando 2 | Region 5 | Santa Clarita: barely in the south |
| PAS SE | Pasadena 6 | Region 6 | Pasadena |
| CRY CW | Crystal Lake 3 | Region 7 | |
| PAC NW | Pacifico Mountain 1 | Region 9 | |
| LIE NW | Liebre Mountain 1 | Region 10 | |
| LAE CW | Lancaster East 3 | Region 11 | Lancaster |
| HIV CE | Hi Vista 4 | Region 12 | |
Notes about each block:
-
LON CE: Includes Long Beach Airport and Signal Hill.
-
TOP CE: Mix of posh suburban Pacific Palisades, canyons, and chapparal.
-
POI SW: Coast, beaches, chaparral, canyons.
-
SOU NW: Huntington Park & Walnut Park areas. Spotted doves.
-
SAD NW: Walnut Creek, South Hills, 57/210 junction, west of Bonelli Park.
-
SAF SW: 405-5-118 highway triangle
-
SAF NE: Includes Bear Divide and Little Tujunga Canyon Road.
-
PAS SE: Western Pasadena including the Rose Bowl, 210/134 junction, South Arroyo, and Oldtown.
-
CRY CW: Crystal Lake Recreation Area. Normally accessible all winter except during major storms.
-
PAC NW: Mt. Emma Road and parts of the Angeles Forest Highway. Only trial block with pinyon pines.
-
LIE NW: Sandberg, the Old Ridge Route, and the west end of Liebre Mountain. Only block with valley oaks and gray pines.
-
LAE CW: South of Ave. I, north of L, east of Division, west of 40th East.
-
HIV CE: Includes Butte Valley Wildlife Sanctuary and the eastern part of Saddleback Butte State Park.
Hotspots in each block
Most of the trial blocks have only a few eBird hotspots that aren’t close to the block edges, but some have hotspots that are barely inside or outside the blocks. In those cases, please pay close attention to your location relative to the block boundary. If the eBird hotspot is barely inside the block (examples: Caltech campus, Oakdale Memorial Park), please use the hotspot and please enter into your eBird checklist notes that you are counting birds only inside the block. If the eBird hotspot is barely outside the block (example: Saddleback Butte State Park), please do not use the hotspot but instead please create and use a personal hotspot that is inside the block, survey the area within the block, and enter into your eBird checklist notes that you are counting birds only inside the block.
Here are some known eBird hotspots that could cause trouble:
-
LON CE: No troublesome hotspots. The most widely used hotspots are Wardlow Park, Skylinks Golf Course, and on Signal Hill.
-
TOP CE: Includes some relatively major hotspots in Temescal Canyon and Will Rogers State Park. Los Liones Trail. Slightly east of the Getty Villa Museum. Barely includes the Greater Pewee spot. Plus several minor spots.
-
POI SW: Zuma Canyon hotspots on the eastern edge. Extensive coverage at Zuma Beach.
-
SOU NW: Near the “Bandini to Slauson” LA River spot. Barely includes a sliver of the river. Includes Salt Lake Park. Huntington Park Civic Park. Doesn’t quite include Leon Washington Park (just north of it).
-
SAD NW: Block boundary splits Oakdale Memorial Park Cemetery. Eastern 1/3 is inside the block. Includes Walnut Creek Park. A couple other minor spots.
-
SAF SW: Includes Mission San Fernando. Only a few minor hotspots. Pacoima spreading groundes. Brand Park-San Fernando.
-
SAF NE: Includes Bear Divide and a couple of minor hotspots. Does NOT include Veterans Memorial Park.
-
PAS SE: Splits the Caltech campus. Includes Lower Arroyo (many lists), Arlington Gardens (many lists), Kewen Canyon (old lists). Also includes a few minor hotspots. Caltech and Lower Arroyo hotspots have 1200+ lists.
-
CRY CW: Minor hotspots. Coldbrook CG spot is inside the block…but barely. Northern 1/2 of the campgroundis in the block. Islip Ridge Trail ebird spot is in the block but the northern part of the trail is outside.
-
PAC NW: Only one minor hotspot.
-
LIE NW: Only one minor hotspot.
-
LAE CW: Only three minor hotspots.
-
HIV CE: Saddleback Butte State Park. Hotspot is west of the block but most of the park is in the block.
Here is a webinar explaining details of the trial atlas:
And here is a webinar covering preliminary results:
Preliminary results
Here for each date, we list the number of checklists, hours, and species in each block as of that date, so we can monitor the progress of the atlas.
04 December 2021
| Block | Checklists | Hours | Species |
|---|---|---|---|
| Crystal Lake CW | 2 | 3.48 | 15 |
| Hi Vista CE | 7 | 2.70 | 18 |
| Lancaster East CW | 1 | 1.07 | 24 |
| Liebre Mountain NW | 1 | 1.22 | 15 |
| Long Beach CE | 17 | 21.40 | 69 |
| Pacifico Mountain NW | 4 | 2.57 | 26 |
| Pasadena SE | 11 | 11.28 | 52 |
| Point Dume SW | 5 | 4.92 | 47 |
| San Dimas NW | 3 | 2.82 | 37 |
| San Fernando NE | 0 | 0.0 | 0 |
| San Fernando SW | 2 | 0.75 | 5 |
| South Gate NW | 0 | 0.0 | 0 |
| Topanga CE | 1 | 0.60 | 6 |
08 December 2021
| Block | Checklists | Hours | Species |
|---|---|---|---|
| Crystal Lake CW | 8 | 6.72 | 32 |
| Hi Vista CE | 7 | 2.70 | 18 |
| Lancaster East CW | 3 | 6.48 | 33 |
| Liebre Mountain NW | 3 | 4.50 | 21 |
| Long Beach CE | 21 | 23.95 | 68 |
| Pacifico Mountain NW | 4 | 2.57 | 26 |
| Pasadena SE | 27 | 27.37 | 69 |
| Point Dume SW | 5 | 4.92 | 47 |
| San Dimas NW | 11 | 9.13 | 56 |
| San Fernando NE | 0 | 0.0 | 0 |
| San Fernando SW | 4 | 2.58 | 32 |
| South Gate NW | 2 | 1.57 | 18 |
| Topanga CE | 4 | 6.43 | 23 |
15 December 2021
| Block | Minutes | Checklists | Hours | Species |
|---|---|---|---|---|
| Crystal Lake CW | 587 | 10 | 9.78 | 32 |
| Hi Vista CE | 487 | 11 | 8.12 | 21 |
| Lancaster East CW | 389 | 3 | 6.48 | 33 |
| Liebre Mountain NW | 763 | 12 | 12.72 | 41 |
| Long Beach CE | 1588 | 25 | 26.47 | 70 |
| Pacifico Mountain NW | 303 | 6 | 5.05 | 26 |
| Pasadena SE | 2556 | 42 | 42.6 | 78 |
| Point Dume SW | 470 | 6 | 7.83 | 53 |
| San Dimas NW | 758 | 17 | 12.63 | 64 |
| San Fernando NE | 320 | 1 | 5.33 | 23 |
| San Fernando SW | 468 | 10 | 7.8 | 48 |
| South Gate NW | 379 | 8 | 6.32 | 49 |
| Topanga CE | 376 | 3 | 6.27 | 23 |
20 December 2021
| Block | Species | Checklists | Minutes | Hours |
|---|---|---|---|---|
| Crystal Lake CW | 35 | 12 | 625 | 10.42 |
| Hi Vista CE | 22 | 12 | 503 | 8.38 |
| Lancaster East CW | 41 | 12 | 719 | 11.98 |
| Liebre Mountain NW | 42 | 13 | 838 | 13.97 |
| Long Beach CE | 77 | 42 | 2828 | 47.13 |
| Pacifico Mountain NW | 26 | 6 | 302 | 5.03 |
| Pasadena SE | 82 | 65 | 4146 | 69.1 |
| Point Dume SW | 69 | 9 | 775 | 12.92 |
| San Dimas NW | 67 | 20 | 923 | 15.38 |
| San Fernando NE | 32 | 4 | 400 | 6.67 |
| San Fernando SW | 50 | 17 | 697 | 11.62 |
| South Gate NW | 49 | 8 | 377 | 6.28 |
| Topanga CE | 34 | 5 | 541 | 9.02 |
26 December 2021
| Block | Species | Checklists | Minutes | Hours |
|---|---|---|---|---|
| Crystal Lake CW | 35 +2 | 20 | 970 | 16.17 |
| Hi Vista CE | 22 | 14 | 716 | 11.93 |
| Lancaster East CW | 42 | 20 | 1329 | 22.15 |
| Liebre Mountain NW | 42 | 22 | 1384 | 23.07 |
| Long Beach CE | 80 + 1 | 68 | 3870 | 64.5 |
| Pacifico Mountain NW | 28 | 9 | 527 | 8.78 |
| Pasadena SE | 100 + 2 | 128 | 6660 | 111 |
| Point Dume SW | 76 | 20 | 1712 | 28.53 |
| San Dimas NW | 68 + 1 | 27 | 1350 | 22.5 |
| San Fernando NE | 34 | 10 | 595 | 9.92 |
| San Fernando SW | 50 | 21 | 882 | 14.7 |
| South Gate NW | 57 | 13 | 630 | 10.5 |
| Topanga CE | 41 | 13 | 733 | 12.22 |
03 January 2022
| Block | Species | Checklists | Minutes | Hours |
|---|---|---|---|---|
| Crystal Lake CW | 35 + 2 | 15 | 845 | 14.08 |
| Hi Vista CE | 22 | 12 | 503 | 8.38 |
| Lancaster East CW | 42 | 13 | 888 | 14.8 |
| Liebre Mountain NW | 42 | 14 | 910 | 15.17 |
| Long Beach CE | 82 + 1 | 70 | 4183 | 69.72 |
| Pacifico Mountain NW | 28 | 7 | 378 | 6.3 |
| Pasadena SE | 109 + 3 | 129 | 8091 | 134.85 |
| Point Dume SW | 78 + 1 | 14 | 1140 | 19 |
| San Dimas NW | 78 | 28 | 1209 | 20.15 |
| San Fernando NE | 68 | 7 | 599 | 9.98 |
| San Fernando SW | 53 | 19 | 755 | 12.58 |
| South Gate NW | 58 | 15 | 650 | 10.83 |
| Topanga CE | 56 | 14 | 1060 | 17.67 |
12 January 2022
| Block | Species | Checklists | Minutes | Hours |
|---|---|---|---|---|
| Crystal Lake CW | 43 + 1 | 23 | 1045 | 17.42 |
| Hi Vista CE | 24 | 17 | 691 | 11.52 |
| Lancaster East CW | 43 | 16 | 907 | 15.12 |
| Liebre Mountain NW | 42 | 17 | 1004 | 16.73 |
| Long Beach CE | 87 + 1 | 85 | 5026 | 83.77 |
| Pacifico Mountain NW | 31 | 12 | 712 | 11.87 |
| Pasadena SE | 101 + 2 | 177 | 10704 | 178.4 |
| Point Dume SW | 82 | 17 | 1192 | 19.87 |
| San Dimas NW | 71 | 36 | 1591 | 26.52 |
| San Fernando NE | 36 | 7 | 600 | 10 |
| San Fernando SW | 53 | 21 | 772 | 12.87 |
| South Gate NW | 59 | 16 | 708 | 11.8 |
| Topanga CE | 58 | 18 | 1322 | 22.03 |
21 January 2022
| Block | Species | Checklists | Minutes | Hours |
|---|---|---|---|---|
| Crystal Lake CW | 43 + 1 | 23 | 1045 | 17.42 |
| Hi Vista CE | 27 + 1 | 26 | 1102 | 18.37 |
| Lancaster East CW | 48 | 25 | 1523 | 25.38 |
| Liebre Mountain NW | 42 | 17 | 1004 | 16.73 |
| Long Beach CE | 91 + 1 | 108 | 6335 | 105.58 |
| Pacifico Mountain NW | 35 | 21 | 1267 | 21.12 |
| Pasadena SE | 108 + 2 | 213 | 12739 | 212.32 |
| Point Dume SW | 81 | 17 | 1192 | 19.87 |
| San Dimas NW | 72 | 41 | 1825 | 30.42 |
| San Fernando NE | 39 | 13 | 1063 | 17.72 |
| San Fernando SW | 57 | 26 | 953 | 15.88 |
| South Gate NW | 60 | 20 | 929 | 15.48 |
| Topanga CE | 60 | 26 | 2048 | 34.13 |
25 January 2022
| Block | Species | Checklists | Minutes | Hours |
|---|---|---|---|---|
| Crystal Lake CW | 43 + 1 | 24 | 1054 | 17.57 |
| Hi Vista CE | 27 + 1 | 27 | 1259 | 20.98 |
| Lancaster East CW | 48 | 25 | 1523 | 25.38 |
| Liebre Mountain NW | 42 | 18 | 1119 | 18.65 |
| Long Beach CE | 92 + 1 | 113 | 6741 | 112.35 |
| Pacifico Mountain NW | 35 | 21 | 1267 | 21.12 |
| Pasadena SE | 110 + 2 | 226 | 13346 | 222.43 |
| Point Dume SW | 81 | 19 | 1453 | 24.22 |
| San Dimas NW | 73 | 42 | 1900 | 31.67 |
| San Fernando NE | 39 | 13 | 1063 | 17.72 |
| San Fernando SW | 57 | 28 | 1009 | 16.82 |
| South Gate NW | 60 | 20 | 929 | 15.48 |
| Topanga CE | 64 | 32 | 2836 | 47.27 |
02 February 2022
| Block | Species | Checklists | Min | Hour |
|---|---|---|---|---|
| Crystal Lake CW | 48 + 1 | 33 | 1500 | 25 |
| Hi Vista CE | 28 + 1 | 31 | 1345 | 22.42 |
| Lancaster East CW | 48 | 25 | 1523 | 25.38 |
| Liebre Mountain NW | 42 | 18 | 1119 | 18.65 |
| Long Beach CE | 93 + 1 | 120 | 7103 | 118.38 |
| Pacifico Mountain NW | 35 | 21 | 1267 | 21.12 |
| Pasadena SE | 110 + 2 | 272 | 15894 | 264.9 |
| Point Dume SW | 81 | 20 | 1468 | 24.47 |
| San Dimas NW | 72 | 48 | 2071 | 34.52 |
| San Fernando NE | 40 | 18 | 1474 | 24.57 |
| San Fernando SW | 57 | 31 | 1104 | 18.4 |
| South Gate NW | 60 | 21 | 969 | 16.15 |
| Topanga CE | 68 | 37 | 4097 | 68.28 |
09 February 2022
| Block | Species | Checklists | Minutes | Hours |
|---|---|---|---|---|
| Crystal Lake CW | 48 + 1 | 34 | 1560 | 26 |
| Hi Vista CE | 28 + 1 | 34 | 1409 | 23.48333333 |
| Lancaster East CW | 49 | 27 | 1591 | 26.51666667 |
| Liebre Mountain NW | 47 | 23 | 1317 | 21.95 |
| Long Beach CE | 94+ 1 | 130 | 7637 | 127.2833333 |
| Pacifico Mountain NW | 35 | 21 | 1267 | 21.11666667 |
| Pasadena SE | 111 + 1 | 306 | 18001 | 300.0166667 |
| Point Dume SW | 82 | 24 | 1628 | 27.13333333 |
| San Dimas NW | 76 | 53 | 2618 | 43.63333333 |
| San Fernando NE | 41 | 20 | 1605 | 26.75 |
| San Fernando SW | 57 | 32 | 1138 | 18.96666667 |
| South Gate NW | 60 | 21 | 969 | 16.15 |
| Topanga CE | 71 | 40 | 4465 | 74.41666667 |
15 February 2022
| Block | Species | Checklist | Minutes | Hours |
|---|---|---|---|---|
| Crystal Lake CW | 48+1 | 35 | 1621 | 27.02 |
| Hi Vista CE | 28+1 | 34 | 1409 | 23.48 |
| Lancaster East CW | 49 | 29 | 2038 | 33.97 |
| Liebre Mountain NW | 47 | 23 | 1317 | 21.95 |
| Long Beach CE | 95 + 1 | 135 | 7862 | 131.03 |
| Pacifico Mountain NW | 35 | 21 | 1267 | 21.12 |
| Pasadena SE | 113 + 1 | 325 | 19586 | 326.43 |
| Point Dume SW | 82 | 26 | 1681 | 28.02 |
| San Dimas NW | 76 | 55 | 2743 | 45.72 |
| San Fernando NE | 51 + 1 | 22 | 1881 | 31.35 |
| San Fernando SW | 57 | 32 | 1138 | 18.97 |
| South Gate NW | 63 | 23 | 1065 | 17.75 |
| Topanga CE | 72 | 45 | 4950 | 82.5 |
Here are the species found in each block as of Feb 15, 2022: (Only a few blocks are shown in each table; scroll down for more blocks)
| Crystal Lake CW | Hi Vista CE | Lancaster East CW | Liebre Mountain NW |
|---|---|---|---|
| Mountain Quail | Eurasian Collared-Dove | California Quail | Mountain Quail |
| Band-tailed Pigeon | Mourning Dove | Rock Pigeon (Feral Pigeon) | California Quail |
| White-throated Swift | Turkey Vulture | Eurasian Collared-Dove | Chukar |
| Anna's Hummingbird | Red-tailed Hawk | Mourning Dove | Band-tailed Pigeon |
| Turkey Vulture | Barn Owl | Anna's Hummingbird | White-throated Swift |
| Golden Eagle | Burrowing Owl | Killdeer | Anna's Hummingbird |
| Sharp-shinned Hawk | Ladder-backed Woodpecker | California Gull | Golden Eagle |
| Red-tailed Hawk | Northern Flicker | Cooper's Hawk | Cooper's Hawk |
| Great Horned Owl | American Kestrel | Red-tailed Hawk | Red-tailed Hawk |
| Acorn Woodpecker | Merlin | Nuttall's Woodpecker | Great Horned Owl |
| Nuttall's Woodpecker | Prairie Falcon | Northern Flicker | Red-breasted Sapsucker |
| Hairy Woodpecker | Say's Phoebe | American Kestrel | Acorn Woodpecker |
| White-headed Woodpecker | Loggerhead Shrike | Merlin | Nuttall's Woodpecker |
| Northern Flicker | Common Raven | Peregrine Falcon | Hairy Woodpecker |
| Black Phoebe | Verdin | Black Phoebe | Northern Flicker |
| Hutton's Vireo | Horned Lark | Say's Phoebe | American Kestrel |
| Steller's Jay | Rock Wren | Vermilion Flycatcher | Steller's Jay |
| California Scrub-Jay | Bewick's Wren | Loggerhead Shrike | California Scrub-Jay |
| Clark's Nutcracker | Cactus Wren | American Crow | Common Raven |
| Common Raven | European Starling | Common Raven | Mountain Chickadee |
| Mountain Chickadee | Mountain Bluebird | Horned Lark | Oak Titmouse |
| Oak Titmouse | House Sparrow | Tree Swallow | Bushtit |
| Bushtit | House Finch | Ruby-crowned Kinglet | Wrentit |
| Wrentit | Black-throated Sparrow | White-breasted Nuthatch | Ruby-crowned Kinglet |
| Ruby-crowned Kinglet | Dark-eyed Junco | Brown Creeper | White-breasted Nuthatch |
| Red-breasted Nuthatch | White-crowned Sparrow | European Starling | Bewick's Wren |
| White-breasted Nuthatch | Bell's Sparrow | Sage Thrasher | European Starling |
| Pygmy Nuthatch | Western Meadowlark | Northern Mockingbird | California Thrasher |
| Brown Creeper | Western Bluebird | Western Bluebird | |
| Canyon Wren | hummingbird sp. | Mountain Bluebird | Hermit Thrush |
| Bewick's Wren | Hermit Thrush | American Robin | |
| California Thrasher | American Robin | Phainopepla | |
| Western Bluebird | Scaly-breasted Munia | American Pipit | |
| Townsend's Solitaire | House Sparrow | House Finch | |
| Hermit Thrush | American Pipit | Purple Finch | |
| Phainopepla | House Finch | Pine Siskin | |
| House Finch | Lesser Goldfinch | Lawrence's Goldfinch | |
| Purple Finch | American Goldfinch | Chipping Sparrow | |
| Lesser Goldfinch | Chipping Sparrow | Fox Sparrow | |
| Fox Sparrow | Lark Sparrow | Dark-eyed Junco | |
| Dark-eyed Junco | Dark-eyed Junco | White-crowned Sparrow | |
| White-crowned Sparrow | White-crowned Sparrow | Golden-crowned Sparrow | |
| Golden-crowned Sparrow | Golden-crowned Sparrow | California Towhee | |
| Song Sparrow | Savannah Sparrow | Rufous-crowned Sparrow | |
| California Towhee | Western Meadowlark | Spotted Towhee | |
| Spotted Towhee | Brewer's Blackbird | Western Meadowlark | |
| Yellow-rumped Warbler | Orange-crowned Warbler | Yellow-rumped Warbler | |
| Townsend's Warbler | Yellow-rumped Warbler | ||
| Black-throated Gray Warbler | |||
| Cassin's/Plumbeous Vireo |
| Long Beach CE | Pacifico Mountain NW | Pasadena SE | Point Dume SW |
|---|---|---|---|
| Canada Goose | California Quail | Canada Goose | Mallard |
| Egyptian Goose | Rock Pigeon (Feral Pigeon) | Blue-winged Teal | Surf Scoter |
| American Wigeon | Mourning Dove | Northern Shoveler | California Quail |
| Mallard | Anna's Hummingbird | American Wigeon | Western Grebe |
| Ring-necked Duck | Cooper's Hawk | Mallard | Rock Pigeon (Feral Pigeon) |
| Ruddy Duck | Red-tailed Hawk | Ring-necked Duck | Band-tailed Pigeon |
| Rock Pigeon (Feral Pigeon) | Nuttall's Woodpecker | Ruddy Duck | Mourning Dove |
| Eurasian Collared-Dove | Northern Flicker | California Quail | White-throated Swift |
| Mourning Dove | Black Phoebe | Rock Pigeon (Feral Pigeon) | Anna's Hummingbird |
| White-throated Swift | Say's Phoebe | Band-tailed Pigeon | Allen's Hummingbird |
| Anna's Hummingbird | Loggerhead Shrike | Eurasian Collared-Dove | Black-bellied Plover |
| Costa's Hummingbird | California Scrub-Jay | Mourning Dove | Snowy Plover |
| Allen's Hummingbird | Common Raven | White-throated Swift | Whimbrel |
| American Coot | Mountain Chickadee | Anna's Hummingbird | Long-billed Curlew |
| Black-bellied Plover | Oak Titmouse | Costa's Hummingbird | Marbled Godwit |
| Killdeer | Verdin | Allen's Hummingbird | Sanderling |
| Spotted Sandpiper | Bushtit | American Coot | Pigeon Guillemot |
| Ring-billed Gull | White-breasted Nuthatch | Black-bellied Plover | Bonaparte's Gull |
| Western Gull | Bewick's Wren | Killdeer | Heermann's Gull |
| California Gull | Cactus Wren | Least Sandpiper | Ring-billed Gull |
| Double-crested Cormorant | European Starling | Western Sandpiper | Western Gull |
| American White Pelican | California Thrasher | Ring-billed Gull | California Gull |
| Snowy Egret | Northern Mockingbird | Western Gull | Glaucous-winged Gull |
| Turkey Vulture | Western Bluebird | California Gull | Caspian Tern |
| Osprey | American Robin | Double-crested Cormorant | Royal Tern |
| Sharp-shinned Hawk | Phainopepla | American White Pelican | Elegant Tern |
| Cooper's Hawk | House Sparrow | Great Blue Heron | Red-throated Loon |
| Red-shouldered Hawk | House Finch | Great Egret | Pacific Loon |
| Red-tailed Hawk | Lesser Goldfinch | Snowy Egret | Common Loon |
| Ferruginous Hawk | Dark-eyed Junco | Green Heron | Black-vented Shearwater |
| Great Horned Owl | White-crowned Sparrow | Turkey Vulture | Brandt's Cormorant |
| Belted Kingfisher | Golden-crowned Sparrow | Osprey | Pelagic Cormorant |
| Downy Woodpecker | California Towhee | Sharp-shinned Hawk | Double-crested Cormorant |
| Nuttall's Woodpecker | Spotted Towhee | Cooper's Hawk | Brown Pelican |
| Northern Flicker | Yellow-rumped Warbler | Red-shouldered Hawk | White-tailed Kite |
| American Kestrel | Red-tailed Hawk | Northern Harrier | |
| Peregrine Falcon | Barn Owl | Cooper's Hawk | |
| Yellow-chevroned Parakeet | Great Horned Owl | Red-shouldered Hawk | |
| Mitred Parakeet | Long-eared Owl | Red-tailed Hawk | |
| Pacific-slope Flycatcher | Belted Kingfisher | Red-breasted Sapsucker | |
| Black Phoebe | Red-naped Sapsucker | Acorn Woodpecker | |
| Say's Phoebe | Red-breasted Sapsucker | Downy Woodpecker | |
| Ash-throated Flycatcher | Lewis's Woodpecker | Nuttall's Woodpecker | |
| Cassin's Kingbird | Acorn Woodpecker | Northern Flicker | |
| Hutton's Vireo | Downy Woodpecker | American Kestrel | |
| California Scrub-Jay | Nuttall's Woodpecker | Nanday Parakeet | |
| American Crow | Northern Flicker | Black Phoebe | |
| Common Raven | American Kestrel | Say's Phoebe | |
| Oak Titmouse | Merlin | Cassin's Kingbird | |
| Bushtit | Yellow-chevroned Parakeet | California Scrub-Jay | |
| Swinhoe's White-eye | Red-crowned Parrot | American Crow | |
| Ruby-crowned Kinglet | Lilac-crowned Parrot | Common Raven | |
| White-breasted Nuthatch | Red-lored Parrot | Oak Titmouse | |
| Brown Creeper | Yellow-headed Parrot | Barn Swallow | |
| Blue-gray Gnatcatcher | Mitred Parakeet | Bushtit | |
| House Wren | Red-masked Parakeet | Wrentit | |
| Bewick's Wren | Black Phoebe | Ruby-crowned Kinglet | |
| European Starling | Say's Phoebe | White-breasted Nuthatch | |
| Northern Mockingbird | Cassin's Kingbird | Blue-gray Gnatcatcher | |
| Western Bluebird | Hutton's Vireo | House Wren | |
| Hermit Thrush | Plumbeous Vireo | Bewick's Wren | |
| American Robin | Steller's Jay | European Starling | |
| Cedar Waxwing | California Scrub-Jay | California Thrasher | |
| Scaly-breasted Munia | American Crow | Northern Mockingbird | |
| Pin-tailed Whydah | Common Raven | Western Bluebird | |
| House Sparrow | Mountain Chickadee | Hermit Thrush | |
| American Pipit | Oak Titmouse | American Robin | |
| House Finch | Northern Rough-winged Swallow | House Finch | |
| Lesser Goldfinch | Violet-green Swallow | Lesser Goldfinch | |
| American Goldfinch | Red-whiskered Bulbul | American Goldfinch | |
| Fox Sparrow | Bushtit | Dark-eyed Junco | |
| Dark-eyed Junco | Wrentit | White-crowned Sparrow | |
| White-crowned Sparrow | Ruby-crowned Kinglet | Golden-crowned Sparrow | |
| Golden-crowned Sparrow | Red-breasted Nuthatch | Song Sparrow | |
| White-throated Sparrow | White-breasted Nuthatch | Lincoln's Sparrow | |
| Savannah Sparrow | Blue-gray Gnatcatcher | California Towhee | |
| Song Sparrow | House Wren | Rufous-crowned Sparrow | |
| Lincoln's Sparrow | Bewick's Wren | Spotted Towhee | |
| California Towhee | European Starling | Orange-crowned Warbler | |
| Green-tailed Towhee | California Thrasher | Common Yellowthroat | |
| Spotted Towhee | Northern Mockingbird | Yellow-rumped Warbler | |
| Western Meadowlark | Western Bluebird | Townsend's Warbler | |
| Brown-headed Cowbird | Hermit Thrush | ||
| Brewer's Blackbird | American Robin | ||
| Black-and-white Warbler | Cedar Waxwing | ||
| Orange-crowned Warbler | Phainopepla | ||
| Nashville Warbler | Scaly-breasted Munia | ||
| Common Yellowthroat | Pin-tailed Whydah | ||
| Chestnut-sided Warbler | House Sparrow | ||
| Yellow-rumped Warbler | House Finch | ||
| Black-throated Gray Warbler | Purple Finch | ||
| Townsend's Warbler | Pine Siskin | ||
| Hermit Warbler | Lesser Goldfinch | ||
| Wilson's Warbler | American Goldfinch | ||
| Summer Tanager | Chipping Sparrow | ||
| Lark Sparrow | |||
| Cassin's/Plumbeous Vireo | Fox Sparrow | ||
| Dark-eyed Junco | |||
| White-crowned Sparrow | |||
| Golden-crowned Sparrow | |||
| Song Sparrow | |||
| Lincoln's Sparrow | |||
| California Towhee | |||
| Spotted Towhee | |||
| Brewer's Blackbird | |||
| Great-tailed Grackle | |||
| Orange-crowned Warbler | |||
| Common Yellowthroat | |||
| Yellow-rumped Warbler | |||
| Black-throated Gray Warbler | |||
| Townsend's Warbler | |||
| Western Tanager | |||
| Black-headed Grosbeak | |||
| Snow/Ross's Goose |
| San Dimas NW | San Fernando NE | San Fernando SW | South Gate NW |
|---|---|---|---|
| Canada Goose | Mountain Quail | Mallard | Northern Shoveler |
| Mallard | California Quail | Rock Pigeon (Feral Pigeon) | American Wigeon |
| California Quail | Band-tailed Pigeon | Eurasian Collared-Dove | Mallard |
| Ring-necked Pheasant | Mourning Dove | Mourning Dove | Rock Pigeon (Feral Pigeon) |
| Rock Pigeon (Feral Pigeon) | White-throated Swift | White-throated Swift | Eurasian Collared-Dove |
| Band-tailed Pigeon | Anna's Hummingbird | Anna's Hummingbird | Mourning Dove |
| Eurasian Collared-Dove | Turkey Vulture | Allen's Hummingbird | White-throated Swift |
| Mourning Dove | Golden Eagle | Western Gull | Anna's Hummingbird |
| White-throated Swift | Sharp-shinned Hawk | California Gull | Allen's Hummingbird |
| Anna's Hummingbird | Red-tailed Hawk | Turkey Vulture | Least Sandpiper |
| Allen's Hummingbird | Western Screech-Owl | Cooper's Hawk | Ring-billed Gull |
| Killdeer | Great Horned Owl | Red-shouldered Hawk | Western Gull |
| California Gull | Acorn Woodpecker | Red-tailed Hawk | California Gull |
| Double-crested Cormorant | Nuttall's Woodpecker | Red-breasted Sapsucker | Herring Gull |
| Great Egret | Northern Flicker | Nuttall's Woodpecker | Iceland Gull (Thayer's) |
| Turkey Vulture | American Kestrel | Northern Flicker | Glaucous-winged Gull |
| Osprey | Black Phoebe | American Kestrel | Great Blue Heron |
| Sharp-shinned Hawk | Say's Phoebe | Merlin | Green Heron |
| Cooper's Hawk | Cassin's Kingbird | Black Phoebe | Black-crowned Night-Heron |
| Red-shouldered Hawk | Steller's Jay | Say's Phoebe | Turkey Vulture |
| Red-tailed Hawk | California Scrub-Jay | Vermilion Flycatcher | Cooper's Hawk |
| Barn Owl | American Crow | Cassin's Kingbird | Red-tailed Hawk |
| Great Horned Owl | Common Raven | Hutton's Vireo | Acorn Woodpecker |
| Belted Kingfisher | Mountain Chickadee | Plumbeous Vireo | Nuttall's Woodpecker |
| Acorn Woodpecker | Oak Titmouse | Loggerhead Shrike | Northern Flicker |
| Nuttall's Woodpecker | Tree Swallow | California Scrub-Jay | American Kestrel |
| Northern Flicker | Bushtit | American Crow | Merlin |
| American Kestrel | Wrentit | Common Raven | Peregrine Falcon |
| Merlin | Ruby-crowned Kinglet | Mountain Chickadee | White-winged Parakeet |
| Red-crowned Parrot | White-breasted Nuthatch | Bushtit | Yellow-chevroned Parakeet |
| Black Phoebe | Bewick's Wren | Ruby-crowned Kinglet | Mitred Parakeet |
| Say's Phoebe | California Thrasher | White-breasted Nuthatch | Black Phoebe |
| Vermilion Flycatcher | Western Bluebird | House Wren | Say's Phoebe |
| Cassin's Kingbird | Hermit Thrush | Bewick's Wren | Vermilion Flycatcher |
| Hutton's Vireo | American Robin | European Starling | Cassin's Kingbird |
| California Scrub-Jay | Phainopepla | Northern Mockingbird | Plumbeous Vireo |
| American Crow | House Finch | Western Bluebird | California Scrub-Jay |
| Common Raven | Purple Finch | Hermit Thrush | American Crow |
| Oak Titmouse | Pine Siskin | American Robin | Common Raven |
| Bushtit | Lesser Goldfinch | Cedar Waxwing | Bushtit |
| Wrentit | Lawrence's Goldfinch | House Sparrow | Ruby-crowned Kinglet |
| Ruby-crowned Kinglet | Fox Sparrow | House Finch | European Starling |
| White-breasted Nuthatch | Dark-eyed Junco | Lesser Goldfinch | Northern Mockingbird |
| Brown Creeper | White-crowned Sparrow | Chipping Sparrow | Western Bluebird |
| Blue-gray Gnatcatcher | Golden-crowned Sparrow | Lark Sparrow | Hermit Thrush |
| Bewick's Wren | Song Sparrow | Fox Sparrow | Cedar Waxwing |
| Cactus Wren | California Towhee | Dark-eyed Junco | House Sparrow |
| European Starling | Rufous-crowned Sparrow | White-crowned Sparrow | American Pipit |
| Gray Catbird | Spotted Towhee | Golden-crowned Sparrow | House Finch |
| California Thrasher | Orange-crowned Warbler | Savannah Sparrow | Lesser Goldfinch |
| Northern Mockingbird | Yellow-rumped Warbler | Song Sparrow | Chipping Sparrow |
| Western Bluebird | California Towhee | Fox Sparrow | |
| Hermit Thrush | Rufous/Allen's Hummingbird | Spotted Towhee | Dark-eyed Junco |
| American Robin | Orange-crowned Warbler | White-crowned Sparrow | |
| Cedar Waxwing | Common Yellowthroat | Savannah Sparrow | |
| Pin-tailed Whydah | Yellow-rumped Warbler | Song Sparrow | |
| House Sparrow | Townsend's Warbler | California Towhee | |
| American Pipit | Spotted Towhee | ||
| House Finch | Brown-headed Cowbird | ||
| Lesser Goldfinch | Brewer's Blackbird | ||
| Lawrence's Goldfinch | Orange-crowned Warbler | ||
| American Goldfinch | Yellow-rumped Warbler | ||
| Chipping Sparrow | Black-throated Gray Warbler | ||
| Lark Sparrow | |||
| Dark-eyed Junco | |||
| White-crowned Sparrow | |||
| Golden-crowned Sparrow | |||
| Vesper Sparrow | |||
| Savannah Sparrow | |||
| Song Sparrow | |||
| California Towhee | |||
| Spotted Towhee | |||
| Orange-crowned Warbler | |||
| Yellow-rumped Warbler | |||
| Black-throated Gray Warbler | |||
| Townsend's Warbler |
| Topanga CE |
|---|
| Northern Shoveler |
| Mallard |
| California Quail |
| Rock Pigeon (Feral Pigeon) |
| Band-tailed Pigeon |
| Eurasian Collared-Dove |
| Mourning Dove |
| White-throated Swift |
| Black-chinned Hummingbird |
| Anna's Hummingbird |
| Allen's Hummingbird |
| Ring-billed Gull |
| Western Gull |
| California Gull |
| Turkey Vulture |
| Sharp-shinned Hawk |
| Cooper's Hawk |
| Red-shouldered Hawk |
| Red-tailed Hawk |
| Great Horned Owl |
| Red-breasted Sapsucker |
| Acorn Woodpecker |
| Downy Woodpecker |
| Nuttall's Woodpecker |
| Hairy Woodpecker |
| Northern Flicker |
| Peregrine Falcon |
| Nanday Parakeet |
| Greater Pewee |
| Black Phoebe |
| Say's Phoebe |
| Cassin's Kingbird |
| Hutton's Vireo |
| California Scrub-Jay |
| American Crow |
| Common Raven |
| Oak Titmouse |
| Bushtit |
| Wrentit |
| Ruby-crowned Kinglet |
| White-breasted Nuthatch |
| Blue-gray Gnatcatcher |
| Canyon Wren |
| House Wren |
| Bewick's Wren |
| European Starling |
| California Thrasher |
| Northern Mockingbird |
| Western Bluebird |
| Hermit Thrush |
| American Robin |
| Cedar Waxwing |
| House Sparrow |
| House Finch |
| Lesser Goldfinch |
| American Goldfinch |
| Fox Sparrow |
| Dark-eyed Junco |
| White-crowned Sparrow |
| Golden-crowned Sparrow |
| Song Sparrow |
| Lincoln's Sparrow |
| California Towhee |
| Rufous-crowned Sparrow |
| Spotted Towhee |
| Western Meadowlark |
| Orange-crowned Warbler |
| Common Yellowthroat |
| Yellow-rumped Warbler |
| Black-throated Gray Warbler |
| Townsend's Warbler |
| Summer Tanager |