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BBS Route · Alaska · BCR 2

Dillingham Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 65 species recorded across 22 survey years, still active.

65Species 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 →
1993–2019Span
4Observers

Bird Species Found on Alaska Dillingham

Top 40 of 65 species by most recent count. Each links to its species trend.

Species recorded on the Dillingham 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
Orange-crowned WarblerParulidae892019+302%1997
Yellow WarblerParulidae872019+443%1997
Wilson's WarblerParulidae782019+539%1995
Golden-crowned SparrowPasserellidae532019+32%1995
Swainson's ThrushTurdidae502019+497%2000
Varied ThrushTurdidae452019+31%1995
Blackpoll WarblerParulidae412019+440%1995
Fox SparrowPasserellidae392019+487%1996
Tree SwallowHirundinidae372019-31%1996
Ruby-crowned KingletRegulidae292019+306%1997
White-crowned SparrowPasserellidae282019+70%1996
American RobinTurdidae222019+6%1995
Glaucous-winged GullLaridae202017-60%1995
White-winged CrossbillFringillidae182017n/an/a
Wilson's SnipeScolopacidae162019+125%1995
Common RavenCorvidae162019-7%1995
Gray-cheeked ThrushTurdidae152019+165%1996
American Tree SparrowPasserellidae11201211×1993
Arctic WarblerPhylloscopidae112019-3%1999
Hermit ThrushTurdidae92019-19%1996
MallardAnatidae92019+233%2014
Short-billed GullLaridae72011-64%1996
Black ScoterAnatidae71996n/an/a
Savannah SparrowPasserellidae72019+10%2000
Greater YellowlegsScolopacidae62019+100%1996
Greater ScaupAnatidae62013-76%2005
Common LoonGaviidae52019+60%1996
Sandhill CraneGruidae52019+64%1996
Red-breasted MerganserAnatidae52019+267%1999
Black-billed MagpieCorvidae52017+40%2000
Northern WaterthrushParulidae52019+32%1999
Red-breasted NuthatchSittidae32019+100%2003
Common GoldeneyeAnatidae32010+0%2004
Lincoln's SparrowPasserellidae32017+186%2010
Hairy WoodpeckerPicidae32013+67%2010
Bohemian WaxwingBombycillidae32019n/an/a
Black-capped ChickadeeParidae22017-93%1995
Alder FlycatcherTyrannidae22019+300%1996
Green-winged TealAnatidae21999n/an/a
Black-backed WoodpeckerPicidae22017n/an/a

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