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BBS Route · Alaska · BCR 2

Cold Bay Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 60 species recorded across 22 survey years, still active.

60Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1993–2024Span
6Observers

Bird Species Found on Alaska Cold Bay

Top 40 of 60 species by most recent count. Each links to its species trend.

Species recorded on the Cold Bay 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
Western SandpiperScolopacidae4302022+446%2000
Least SandpiperScolopacidae1232024+163%1995
Golden-crowned SparrowPasserellidae752024+97%1995
Lapland LongspurCalcariidae552024-42%1995
Black ScoterAnatidae522024+141%1995
Rock SandpiperScolopacidae382024-70%1995
Savannah SparrowPasserellidae342024-53%1995
Greater ScaupAnatidae322024-32%1995
Short-billed GullLaridae272024+87%1995
Yellow WarblerParulidae192024+228%1995
American PipitMotacillidae192024+44%1995
Semipalmated PloverCharadriidae152024+0%1995
Red-breasted MerganserAnatidae132024+100%2006
Tundra SwanAnatidae122024-28%1998
Greater YellowlegsScolopacidae122024+467%2008
Northern PintailAnatidae102024+50%2001
Bald EagleAccipitridae92024+340%1996
Bank SwallowHirundinidae92024-69%1995
Wilson's SnipeScolopacidae82024-43%1995
DunlinScolopacidae82024+22%2003
Arctic TernLaridae62024+100%2019
MallardAnatidae52024-37%1995
Willow PtarmiganPhasianidae52024-95%1995
Black-billed MagpieCorvidae52024+220%1996
Pacific LoonGaviidae42021n/an/a
Fox SparrowPasserellidae32024-14%1995
Horned PuffinAlcidae32005n/an/a
Pacific Golden-PloverCharadriidae32024+50%2022
White-crowned SparrowPasserellidae32024+200%2023
Common LoonGaviidae22024-60%1997
Short-billed DowitcherScolopacidae22024+50%2006
Common RavenCorvidae22024-33%1999
Red-necked PhalaropeScolopacidae22024+100%1994
GyrfalconFalconidae22019+50%2002
Parasitic JaegerStercorariidae22024+100%1995
Wilson's WarblerParulidae22024-50%1999
Tree SwallowHirundinidae22024+50%2003
Song SparrowPasserellidae22000n/an/a
GadwallAnatidae22003n/an/a
Pine GrosbeakFringillidae22021+100%2004

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.