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BBS Route · California · BCR 5

Shasta Lake Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 116 species recorded across 38 survey years, still active.

116Species 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 →
38Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–2025Span
5Observers

Bird Species Found on California Shasta Lake

Top 40 of 116 species by most recent count. Each links to its species trend.

Species recorded on the Shasta Lake 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
Black-throated Gray WarblerParulidae562025+30%1974
Black-headed GrosbeakCardinalidae522025-38%1974
Western TanagerCardinalidae372025+18%1974
Cliff SwallowHirundinidae362025-45%1974
Acorn WoodpeckerPicidae352025+137%1974
Orange-crowned WarblerParulidae332025-40%1974
Spotted TowheePasserellidae302025-11%1974
Cassin's VireoVireonidae202025+20%1974
Lazuli BuntingCardinalidae192025+450%1976
Turkey VultureCathartidae182025+413%1979
Steller's JayCorvidae162025+96%1974
Mountain QuailOdontophoridae142025+256%1974
Hutton's VireoVireonidae112025+25%1974
Oak TitmouseParidae112025+271%1974
Ash-throated FlycatcherTyrannidae92025-41%1974
California Scrub-JayCorvidae92025+354%1974
California TowheePasserellidae92012+200%1976
Lesser GoldfinchFringillidae72025-33%1974
Chipping SparrowPasserellidae62007+167%1974
American RobinTurdidae62025+89%1974
Hairy WoodpeckerPicidae62025+700%1976
Red CrossbillFringillidae62024+200%1983
Yellow WarblerParulidae52025-65%1975
BushtitAegithalidae52025+32%1975
Common RavenCorvidae52025+50%1984
Bullock's OrioleIcteridae42012-53%1974
Warbling VireoVireonidae42025-53%1974
Nashville WarblerParulidae42025-19%1974
Bewick's WrenTroglodytidae42025-63%1974
Pileated WoodpeckerPicidae42025+100%2005
Bald EagleAccipitridae42025+100%1991
Western Wood-PeweeTyrannidae32025-67%1974
House FinchFringillidae31974-25%1972
Yellow-breasted ChatIcteriidae32025+50%1975
Northern House WrenTroglodytidae32025-67%1974
White-breasted NuthatchSittidae32025+26%1974
Red-breasted NuthatchSittidae32025-27%1974
MallardAnatidae32025-60%1995
Ruby-crowned KingletRegulidae32012+0%1981
Hermit WarblerParulidae32003+33%1995

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