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BBS Route · Alaska · BCR 5

Zimovia Strt Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 70 species recorded across 37 survey years, still active.

70Species 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 →
37Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2025Span
1Observers

Bird Species Found on Alaska Zimovia Strt

Top 40 of 70 species by most recent count. Each links to its species trend.

Species recorded on the Zimovia Strt 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
American CrowCorvidae832025+121%1990
American RobinTurdidae492025+40%1990
Hermit ThrushTurdidae392025+13%1990
Varied ThrushTurdidae352025+35%1990
Sooty GrousePhasianidae282025+957%1990
Pacific WrenTroglodytidae252025-32%1990
Townsend's WarblerParulidae20202528×1994
Surf ScoterAnatidae202024-68%1998
Herring GullLaridae202002+214%1998
Steller's JayCorvidae142025+31%1990
Song SparrowPasserellidae142025+110%1990
Orange-crowned WarblerParulidae132025+39%1990
Red-breasted SapsuckerPicidae122025+75%1991
Chestnut-backed ChickadeeParidae92025-17%1990
Common MerganserAnatidae82025-44%1993
Ruby-crowned KingletRegulidae82025+91%1994
Harlequin DuckAnatidae72024+20%1994
Belted KingfisherAlcedinidae72025+7%1990
Golden-crowned KingletRegulidae72025-83%1990
Swainson's ThrushTurdidae72025-28%1990
European StarlingSturnidae72024n/an/a
Bald EagleAccipitridae52025+58%1990
Red CrossbillFringillidae52025-67%1998
Glaucous-winged GullLaridae42025+83%1991
Canada GooseAnatidae42025+9%2002
Bonaparte's GullLaridae42017-77%1999
Common RavenCorvidae32025+30%1990
Marbled MurreletAlcidae32025+0%1992
Great Blue HeronArdeidae22025-75%1992
Western Wood-PeweeTyrannidae22010-67%1995
Golden-crowned SparrowPasserellidae21988n/an/a
Fox SparrowPasserellidae22025-9%1993
Hammond's FlycatcherTyrannidae22015-90%1996
Chipping SparrowPasserellidae21996-85%1990
Lincoln's SparrowPasserellidae22024-11%1991
Barn SwallowHirundinidae22023+67%1994
Hairy WoodpeckerPicidae22025-55%1993
Pigeon GuillemotAlcidae22025-65%2000
Cedar WaxwingBombycillidae22023-78%2004
Eurasian Collared-DoveColumbidae22025-50%2015

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