BirdAnalyst
BBS Route · California · BCR 32

Harbor Lake 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 77 species recorded across 10 survey years, still active.

77Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2014–2024Span
1Observers

Bird Species Found on California Harbor Lake 2

Top 40 of 77 species by most recent count. Each links to its species trend.

Species recorded on the Harbor Lake 2 route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
House FinchFringillidae1182024-2%2016
California TowheePasserellidae642024+24%2016
Brandt's CormorantPhalacrocoracidae59202431×2017
American CrowCorvidae532024+111%2016
Western GullLaridae412024+39%2016
Lesser GoldfinchFringillidae412024-11%2016
Orange-crowned WarblerParulidae412024+47%2016
Northern MockingbirdMimidae342024-31%2016
Allen's HummingbirdTrochilidae332024-21%2016
Mourning DoveColumbidae312024+15%2016
Indian PeafowlPhasianidae262024-5%2016
Hooded OrioleIcteridae262024+18%2016
Common RavenCorvidae252024+50%2016
Song SparrowPasserellidae242024+58%2016
Northern House WrenTroglodytidae172024+300%2019
Black PhoebeTyrannidae162024-14%2016
Caspian TernLaridae152024+375%2017
European StarlingSturnidae152024+7%2016
Spotted TowheePasserellidae152024+10%2016
House SparrowPasseridae152024-47%2016
Brown PelicanPelecanidae142024-49%2016
BushtitAegithalidae122024-70%2016
Swinhoe’s White-eyeZosteropidae112024+250%2022
Red-tailed HawkAccipitridae62024+0%2016
White-throated SwiftApodidae62024+25%2016
Cassin's KingbirdTyrannidae62024+29%2016
Common YellowthroatParulidae62024-30%2016
American RobinTurdidae62024+50%2016
Red-shouldered HawkAccipitridae52024+180%2017
Downy WoodpeckerPicidae52022+14%2017
Yellow WarblerParulidae52024+22%2016
American GoldfinchFringillidae52017+400%2015
Western GrebePodicipedidae52024+150%2018
Anna's HummingbirdTrochilidae42024-9%2016
California Scrub-JayCorvidae42024-16%2016
Great-tailed GrackleIcteridae42024+150%2018
Snowy EgretArdeidae32022-29%2018
Cliff SwallowHirundinidae32024-43%2016
Eurasian Collared-DoveColumbidae32024+50%2016
Scaly-breasted MuniaEstrildidae32024+50%2018

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.