BirdAnalyst
BBS Route · California · BCR 15

Pollock Pines Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 73 species recorded across 28 survey years, still active.

73Species 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 →
28Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1997–2025Span
1Observers

Bird Species Found on California Pollock Pines

Top 40 of 73 species by most recent count. Each links to its species trend.

Species recorded on the Pollock Pines 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
Lazuli BuntingCardinalidae58202534×2003
Western TanagerCardinalidae392025+28%1999
Fox SparrowPasserellidae202025-40%1999
Mountain QuailOdontophoridae182025+70%1999
Western Wood-PeweeTyrannidae162025+164%1999
Chipping SparrowPasserellidae162025+88%1999
Spotted TowheePasserellidae142025-19%1999
Common RavenCorvidae122025+343%2000
Green-tailed TowheePasserellidae102025+567%1999
American RobinTurdidae102025+29%1999
Olive-sided FlycatcherTyrannidae92025+80%1999
Red-breasted NuthatchSittidae92025+42%1999
Brown CreeperCerthiidae92025-36%2000
Black-headed GrosbeakCardinalidae82025+95%1999
Dusky FlycatcherTyrannidae72025-48%2000
Lesser GoldfinchFringillidae72025+80%2006
MacGillivray's WarblerParulidae52025-50%2000
Steller's JayCorvidae42025+24%1999
Warbling VireoVireonidae42025-54%1999
Hermit WarblerParulidae42025-37%1999
Northern House WrenTroglodytidae42025+150%2000
Cassin's FinchFringillidae42025+60%2001
Western BluebirdTurdidae42024+300%2014
Hairy WoodpeckerPicidae32025+150%1999
Hammond's FlycatcherTyrannidae32025+50%1999
Purple FinchFringillidae32025-55%1999
Mountain ChickadeeParidae32025-56%2000
Brown-headed CowbirdIcteridae32024-33%2004
House FinchFringillidae32025+200%2023
Band-tailed PigeonColumbidae22024+29%2000
Evening GrosbeakFringillidae22021-78%2000
Brewer's BlackbirdIcteridae21999n/an/a
Pine SiskinFringillidae22016-60%2005
Townsend's SolitaireTurdidae22025-38%2002
Red CrossbillFringillidae22025-67%2004
Red-tailed HawkAccipitridae22025+67%2007
MallardAnatidae22012n/an/a
Anna's HummingbirdTrochilidae22025+100%2022
Lark SparrowPasserellidae22024n/an/a
Mountain BluebirdTurdidae22025+0%2024

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