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BBS Route · California · BCR 32

Elizabeth Lk Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 114 species recorded across 25 survey years, still active.

114Species 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 →
25Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–2016Span
11Observers

Bird Species Found on California Elizabeth Lk

Top 40 of 114 species by most recent count. Each links to its species trend.

Species recorded on the Elizabeth Lk 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 FinchFringillidae762016-32%1973
Common RavenCorvidae412016+50%1973
American CrowCorvidae292016+633%1975
California Scrub-JayCorvidae222016-40%1973
Spotted TowheePasserellidae222016-44%1973
Gambel's QuailOdontophoridae211970n/an/a
Lesser GoldfinchFringillidae152016-71%1974
Black-headed GrosbeakCardinalidae152016-58%1974
WrentitSylviidae152016-46%1974
Brewer's BlackbirdIcteridae142016-80%1973
Northern Rough-winged SwallowHirundinidae142016+125%1974
Bewick's WrenTroglodytidae132016-57%1974
Nuttall's WoodpeckerPicidae122016+0%1973
California TowheePasserellidae122016-52%1973
Barn SwallowHirundinidae112016n/an/a
White-throated SwiftApodidae92015-77%1973
Cassin's KingbirdTyrannidae92016+500%1983
Eurasian Collared-DoveColumbidae92016+8%2014
House SparrowPasseridae82016-88%1973
California QuailOdontophoridae82016-77%1974
Mourning DoveColumbidae72016-82%1973
Acorn WoodpeckerPicidae72016-20%1973
Ash-throated FlycatcherTyrannidae72016-80%1973
California ThrasherMimidae72016-46%1973
Olive-sided FlycatcherTyrannidae71991+600%1975
Yellow-headed BlackbirdIcteridae71986+180%1980
Rock PigeonColumbidae62015+282%1973
Western KingbirdTyrannidae62016+0%1973
European StarlingSturnidae62016-91%1973
Western BluebirdTurdidae62016+20%1973
Song SparrowPasserellidae62016-34%1974
KilldeerCharadriidae52012-47%1973
Western Wood-PeweeTyrannidae52016-73%1973
Loggerhead ShrikeLaniidae51984+0%1973
Eared GrebePodicipedidae52016+400%1980
Red-tailed HawkAccipitridae42016-33%1973
Brown-headed CowbirdIcteridae42016-79%1973
Bullock's OrioleIcteridae42016-83%1973
PhainopeplaPtiliogonatidae42016-6%1973
Rock WrenTroglodytidae42015-50%1973

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