BBS Route · California · BCR 32

Glen Ellen 3 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 63 species recorded across 2 survey years, still active.

Bird Species Found on California Glen Ellen 3

Top 40 of 63 species by most recent count. Each links to its species trend.

Species recorded on the Glen Ellen 3 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
California GullLaridae412025n/an/a
Common RavenCorvidae322025+540%2024
Acorn WoodpeckerPicidae252025+56%2024
Lesser GoldfinchFringillidae232025+667%2024
California QuailOdontophoridae212025+11%2024
Mourning DoveColumbidae182025n/an/a
Spotted TowheePasserellidae162025+129%2024
Violet-green SwallowHirundinidae12202512×2024
American CrowCorvidae112025-15%2024
Red-winged BlackbirdIcteridae102025+100%2024
Turkey VultureCathartidae102025n/an/a
Canada GooseAnatidae92025+800%2024
House FinchFringillidae92025-61%2024
BushtitAegithalidae92025+800%2024
Western BluebirdTurdidae82025+60%2024
Ash-throated FlycatcherTyrannidae72025+600%2024
California TowheePasserellidae72025-30%2024
WrentitSylviidae72025+133%2024
Anna's HummingbirdTrochilidae62025+500%2024
Steller's JayCorvidae62025+20%2024
Oak TitmouseParidae62025+200%2024
Band-tailed PigeonColumbidae62025n/an/a
California Scrub-JayCorvidae52025+0%2024
Orange-crowned WarblerParulidae52025+0%2024
Bewick's WrenTroglodytidae52025+400%2024
Western KingbirdTyrannidae52025n/an/a
Wild TurkeyPhasianidae42024n/an/a
Nuttall's WoodpeckerPicidae42025-20%2024
Black PhoebeTyrannidae42025+33%2024
European StarlingSturnidae42024n/an/a
Black-headed GrosbeakCardinalidae42025-50%2024
Song SparrowPasserellidae32025+50%2024
Warbling VireoVireonidae32025-40%2024
Cassin's VireoVireonidae32025+200%2024
House SparrowPasseridae32024n/an/a
American RobinTurdidae32025-57%2024
KilldeerCharadriidae32025n/an/a
Bullock's OrioleIcteridae32025n/an/a
Western TanagerCardinalidae32025n/an/a
Tree SwallowHirundinidae32025n/an/a

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.