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BBS Route · Alaska · BCR 4

Hatcher Pass Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 81 species recorded across 35 survey years, still active.

81Species 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 →
35Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1982–2024Span
4Observers

Bird Species Found on Alaska Hatcher Pass

Top 40 of 81 species by most recent count. Each links to its species trend.

Species recorded on the Hatcher Pass 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
Alder FlycatcherTyrannidae442024-46%1985
American RobinTurdidae332024-8%1985
White-crowned SparrowPasserellidae262024-21%1985
Orange-crowned WarblerParulidae262024+25%1985
Golden-crowned SparrowPasserellidae162024-21%1985
Northern WaterthrushParulidae132024+34%1986
Swainson's ThrushTurdidae112024-75%1985
Wilson's WarblerParulidae112024-34%1986
Cliff SwallowHirundinidae81993+300%1986
Bohemian WaxwingBombycillidae61985n/an/a
Ring-necked DuckAnatidae52013+150%1997
Golden-crowned KingletRegulidae42019+50%2005
Black-billed MagpieCorvidae32024+56%1985
Common RavenCorvidae32024+120%1993
Fox SparrowPasserellidae32024-85%1985
Violet-green SwallowHirundinidae32017-74%1985
Bank SwallowHirundinidae31994+50%1982
Hermit ThrushTurdidae32024+22%1985
Pine SiskinFringillidae32024-94%1994
Canada GooseAnatidae32012-17%1994
Wilson's SnipeScolopacidae22024-43%1985
Savannah SparrowPasserellidae22024-84%1985
Lincoln's SparrowPasserellidae22024-39%1986
Tree SwallowHirundinidae22024-70%1993
Yellow WarblerParulidae22024-56%1985
Varied ThrushTurdidae22021-91%1985
American Tree SparrowPasserellidae22011+0%2003
Sandhill CraneGruidae22014-79%2006
White-winged CrossbillFringillidae22024-67%1997
Lapland LongspurCalcariidae21998n/an/a
Glaucous-winged GullLaridae21999n/an/a
Boreal ChickadeeParidae22019+0%2007
Green-winged TealAnatidae22012n/an/a
Pacific LoonGaviidae22017n/an/a
Bonaparte's GullLaridae12013-50%1995
Greater YellowlegsScolopacidae12012+0%1985
Belted KingfisherAlcedinidae12016-25%2003
Blackpoll WarblerParulidae12024-93%1986
Black-capped ChickadeeParidae12024+0%1985
Ruby-crowned KingletRegulidae12022-91%1985

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