BirdAnalyst
BBS Route · California · BCR 32

Cp. Pendleton Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 106 species recorded across 21 survey years, no longer active.

106Species 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 →
21Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–2004Span
8Observers

Bird Species Found on California Cp. Pendleton

Top 40 of 106 species by most recent count. Each links to its species trend.

Species recorded on the Cp. Pendleton 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
Cliff SwallowHirundinidae1182004+31%1972
House FinchFringillidae482004-63%1972
American CootRallidae451991+688%1974
American CrowCorvidae322004+31%1972
Blue GrosbeakCardinalidae292004+93%1972
Spotted TowheePasserellidae272004+389%1973
Mourning DoveColumbidae242004+38%1972
Song SparrowPasserellidae222004-73%1972
Northern House WrenTroglodytidae152003-60%1973
Common YellowthroatParulidae152004+300%1974
Lesser GoldfinchFringillidae142003+50%1972
Bullock's OrioleIcteridae132003+65%1972
American GoldfinchFringillidae132004-57%1973
Common RavenCorvidae102004-45%1972
Violet-green SwallowHirundinidae81979+300%1970
Northern Rough-winged SwallowHirundinidae82004-23%1979
European StarlingSturnidae72004-63%1972
Black-headed GrosbeakCardinalidae72004+69%1974
Chipping SparrowPasserellidae72004n/an/a
MallardAnatidae61988+55%1974
Least TernLaridae51970n/an/a
California QuailOdontophoridae52003-40%1973
Turkey VultureCathartidae51992+50%1972
White-tailed KiteAccipitridae52004-50%1972
Northern MockingbirdMimidae52004-25%1972
Cassin's KingbirdTyrannidae52004+73%1974
Grasshopper SparrowPasserellidae52004-31%1988
GadwallAnatidae51991-58%1989
White-crowned SparrowPasserellidae51991n/an/a
Ruddy DuckAnatidae41991-60%1979
California Scrub-JayCorvidae42004+22%1972
Red-winged BlackbirdIcteridae42004-48%1973
Western MeadowlarkIcteridae42003-85%1972
Brewer's BlackbirdIcteridae42003-89%1972
Yellow WarblerParulidae42003+100%1973
Snowy EgretArdeidae42004n/an/a
Red-tailed HawkAccipitridae32004-5%1972
Ash-throated FlycatcherTyrannidae32003+33%1973
Lazuli BuntingCardinalidae32003-55%1973
WrentitSylviidae32004+22%1972

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