BBS Route · California · BCR 9

Hackamore Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 75 species recorded across 9 survey years, still active.

Bird Species Found on California Hackamore

Top 40 of 75 species by most recent count. Each links to its species trend.

Species recorded on the Hackamore 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
Mountain ChickadeeParidae602010+32%2002
Dusky FlycatcherTyrannidae372010+490%2002
Canada GooseAnatidae322010+258%2005
American RobinTurdidae292010-10%2002
Western Wood-PeweeTyrannidae192010+45%2002
Chipping SparrowPasserellidae162010-42%2002
Mountain BluebirdTurdidae142010+181%2002
Brown-headed CowbirdIcteridae132010+44%2002
Northern House WrenTroglodytidae122010+57%2002
BushtitAegithalidae122003+200%2002
Brewer's BlackbirdIcteridae102010+29%2002
Tree SwallowHirundinidae92010+114%2005
Lesser GoldfinchFringillidae92010+0%2006
Spotted TowheePasserellidae82010+17%2002
Western MeadowlarkIcteridae72010+6%2002
Western TanagerCardinalidae72010+38%2002
Sandhill CraneGruidae62010+125%2005
Mourning DoveColumbidae62010+133%2002
Steller's JayCorvidae62010-43%2002
Red CrossbillFringillidae62010+56%2006
Western BluebirdTurdidae62010+0%2003
MallardAnatidae52010+100%2003
Turkey VultureCathartidae52007-50%2002
Hairy WoodpeckerPicidae52007+133%2002
Horned LarkAlaudidae52010+50%2003
American GoldfinchFringillidae52001n/an/a
Cassin's VireoVireonidae52010+233%2005
Common NighthawkCaprimulgidae52007+150%2003
Mountain QuailOdontophoridae42010+25%2005
Vesper SparrowPasserellidae42010+0%2005
Brown CreeperCerthiidae42010+50%2002
Red-breasted NuthatchSittidae42010-13%2002
Pygmy NuthatchSittidae42010-46%2003
Common RavenCorvidae42010+100%2003
Townsend's SolitaireTurdidae42010+22%2006
Red-tailed HawkAccipitridae32010+0%2002
OspreyPandionidae32003+0%2000
Williamson's SapsuckerPicidae32010+25%2003
Bullock's OrioleIcteridae32010+33%2002
Cassin's FinchFringillidae32010-60%2007

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