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BBS Route · California · BCR 32

Jacumba Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 113 species recorded across 40 survey years, still active.

113Species 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 →
40Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2025Span
8Observers

Bird Species Found on California Jacumba

Top 40 of 113 species by most recent count. Each links to its species trend.

Species recorded on the Jacumba 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
Tricolored BlackbirdIcteridae2001999100×1994
California Scrub-JayCorvidae622025-13%1976
House FinchFringillidae572025-48%1976
California QuailOdontophoridae472025+90%1976
California TowheePasserellidae452025+274%1976
House SparrowPasseridae402025-49%1976
Ash-throated FlycatcherTyrannidae322025+281%1976
Common RavenCorvidae312025+131%1976
Acorn WoodpeckerPicidae202025+121%1976
Spotted TowheePasserellidae202025+32%1976
GadwallAnatidae201988n/an/a
Western KingbirdTyrannidae182025+94%1976
European StarlingSturnidae172025-16%1976
California ThrasherMimidae172025-21%1976
Eurasian Collared-DoveColumbidae172025+50%2014
Bewick's WrenTroglodytidae162025-9%1976
Oak TitmouseParidae162025+24%1976
Mourning DoveColumbidae112025-4%1976
Lesser GoldfinchFringillidae112025+57%1986
Northern ShovelerAnatidae101988n/an/a
Western MeadowlarkIcteridae92025+283%1978
WrentitSylviidae92025+155%1976
Black-headed GrosbeakCardinalidae82025+62%1976
BushtitAegithalidae82025-84%1976
Say's PhoebeTyrannidae72025+92%1988
Scott's OrioleIcteridae62025+40%1978
Brewer's BlackbirdIcteridae62025-63%1976
American GoldfinchFringillidae61976n/an/a
Red-tailed HawkAccipitridae52025-15%1976
Red-winged BlackbirdIcteridae52025-81%1987
Bullock's OrioleIcteridae52025-33%1976
Bell's SparrowPasserellidae52025-57%1978
Western BluebirdTurdidae52025-33%1976
Northern House WrenTroglodytidae52025+15%1986
Pied-billed GrebePodicipedidae51995+450%1987
Rock PigeonColumbidae52012+100%1991
Yellow WarblerParulidae52025+150%2016
White-throated SwiftApodidae42012+100%1989
Black-chinned SparrowPasserellidae42025-47%1976
Great Horned OwlStrigidae42025+100%1991

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