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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 36 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1982–2025Span
5Observers

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 FlycatcherTyrannidae542025-19%1985
American RobinTurdidae372025+9%1985
White-crowned SparrowPasserellidae322025-9%1985
Golden-crowned SparrowPasserellidae282025-3%1985
Orange-crowned WarblerParulidae232025+33%1985
Wilson's WarblerParulidae222025-17%1986
Black-capped ChickadeeParidae142025+77%1985
Fox SparrowPasserellidae82025-78%1985
Cliff SwallowHirundinidae81993+300%1986
Yellow WarblerParulidae72025-36%1985
Swainson's ThrushTurdidae72025-72%1985
Northern WaterthrushParulidae72025-13%1986
Bohemian WaxwingBombycillidae61985n/an/a
Ring-necked DuckAnatidae52013+150%1997
Golden-crowned KingletRegulidae42019+50%2005
Common RavenCorvidae32024+120%1993
Savannah SparrowPasserellidae32025-77%1985
Lincoln's SparrowPasserellidae32025-31%1986
Violet-green SwallowHirundinidae32017-74%1985
Bank SwallowHirundinidae31994+50%1982
Canada GooseAnatidae32012-17%1994
Wilson's SnipeScolopacidae22025-29%1985
Tree SwallowHirundinidae22024-70%1993
Blackpoll WarblerParulidae22025-91%1986
Hermit ThrushTurdidae22025+33%1985
Pine SiskinFringillidae22025-93%1994
American Tree SparrowPasserellidae22011+0%2003
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
Black-billed MagpieCorvidae12025-11%1985
Ruby-crowned KingletRegulidae12022-91%1985
Gray-cheeked ThrushTurdidae12025-83%1985
Varied ThrushTurdidae12025-91%1985

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