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BBS Route · California · BCR 32

Waterman Gap Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 92 species recorded across 45 survey years, still active.

92Species Recorded
45Years Surveyed
1972–2024Span
4Observers

Bird Species Found on California Waterman Gap

Top 40 of 92 species by most recent count. Each links to its species trend.

Species recorded on the Waterman Gap route.
History
Acorn WoodpeckerPicidae562024+481%1975
Warbling VireoVireonidae502024+40%1975
Black-throated Gray WarblerParulidae482024+357%1975
Spotted TowheePasserellidae382024+125%1975
Chestnut-backed ChickadeeParidae322024-34%1975
Steller's JayCorvidae272024+53%1975
Olive-sided FlycatcherTyrannidae262024+52%1975
Band-tailed PigeonColumbidae212024+200%1975
Bewick's WrenTroglodytidae182024+111%1976
American RobinTurdidae172024+31%1975
Orange-crowned WarblerParulidae172024-28%1977
California TowheePasserellidae162024+144%1975
California QuailOdontophoridae152024+120%1975
Hermit ThrushTurdidae152024+0%1977
Purple FinchFringillidae152024-3%1977
Wilson's WarblerParulidae112024+213%1977
Pacific WrenTroglodytidae112024+300%1976
Anna's HummingbirdTrochilidae112024+440%1978
American CrowCorvidae102024+500%2007
California Scrub-JayCorvidae92024-27%1975
Black-headed GrosbeakCardinalidae92024-15%1975
Common RavenCorvidae82024+350%1988
Brown CreeperCerthiidae82024+40%1975
Mourning DoveColumbidae72024+53%1975
WrentitSylviidae72024-68%1975
Pygmy NuthatchSittidae62024+0%1978
White-crowned SparrowPasserellidae41972n/an/a
Lazuli BuntingCardinalidae42024+300%2006
Western TanagerCardinalidae42024-43%1976
Cassin's VireoVireonidae42024-52%1975
Hutton's VireoVireonidae42024-50%1975
Allen's HummingbirdTrochilidae42024+50%1977
Hermit WarblerParulidae42024-68%2004
Purple MartinHirundinidae42024+300%2017
Hairy WoodpeckerPicidae32024+25%1975
House FinchFringillidae32024-86%1975
Violet-green SwallowHirundinidae32019-59%1976
Oak TitmouseParidae32024-57%1977
Red-winged BlackbirdIcteridae32016+50%1980
MallardAnatidae32024+20%1994

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