BirdAnalyst
BBS Route · California · BCR 32

Hughson Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 57 survey years, still active.

120Species 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 →
57Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
4Observers

Bird Species Found on California Hughson

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Hughson 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 SwallowHirundinidae4452025+22%1970
House FinchFringillidae1882025+24%1970
Mourning DoveColumbidae882025+587%1970
European StarlingSturnidae832025+430%1970
Brewer's BlackbirdIcteridae752025-80%1970
House SparrowPasseridae572025-26%1970
American White PelicanPelecanidae422025+62%1990
Eurasian Collared-DoveColumbidae392025+244%2010
Western KingbirdTyrannidae372025+154%1970
Northern MockingbirdMimidae322025+178%1970
Tricolored BlackbirdIcteridae302024-38%1976
Savannah SparrowPasserellidae301977n/an/a
California Scrub-JayCorvidae27202516×1970
Turkey VultureCathartidae262025+533%1970
American RobinTurdidae232025+457%1970
Red-tailed HawkAccipitridae192025+686%1970
American CrowCorvidae182025+10%1970
Double-crested CormorantPhalacrocoracidae182024+900%2015
Great EgretArdeidae172024+633%1974
White-faced IbisThreskiornithidae172024-51%2010
Yellow-billed MagpieCorvidae162025+425%1970
KilldeerCharadriidae142025+67%1970
Lesser GoldfinchFringillidae142025+600%1978
Canada GooseAnatidae142025+310%1996
Western GrebePodicipedidae132024+5%1990
Rock PigeonColumbidae112023+253%1970
Western MeadowlarkIcteridae102025-85%1970
American GoldfinchFringillidae92025+550%1972
OspreyPandionidae92025+217%2000
Brown-headed CowbirdIcteridae82025+850%1974
Black PhoebeTyrannidae82025+425%1983
Black-necked StiltRecurvirostridae82024+100%1984
Common RavenCorvidae82025+144%2007
American AvocetRecurvirostridae72023+129%1986
Nuttall's WoodpeckerPicidae62025+367%1987
Acorn WoodpeckerPicidae52025+533%1973
Barn SwallowHirundinidae52025-35%1970
Swainson's HawkAccipitridae52025+233%1998
Snowy EgretArdeidae52018n/an/a
Bullock's OrioleIcteridae42025+525%1973

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