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BBS Route · Alaska · BCR 4

Petersville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 84 species recorded across 25 survey years, still active.

84Species 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 →
25Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1986–2024Span
4Observers

Bird Species Found on Alaska Petersville

Top 40 of 84 species by most recent count. Each links to its species trend.

Species recorded on the Petersville 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 FlycatcherTyrannidae892024+26%1992
Swainson's ThrushTurdidae612024+43%1992
Wilson's SnipeScolopacidae392024+227%1992
Varied ThrushTurdidae332024+66%1992
White-crowned SparrowPasserellidae322024+1%1992
Lincoln's SparrowPasserellidae302024+9%1992
American RobinTurdidae282024+25%1992
Northern WaterthrushParulidae192024-50%1992
Ruby-crowned KingletRegulidae192024-49%1992
Cliff SwallowHirundinidae82004-35%1993
Common RavenCorvidae62024+10%1992
Gray-cheeked ThrushTurdidae62024-88%1992
Glaucous-winged GullLaridae61987n/an/a
Bonaparte's GullLaridae51997+150%1992
Lesser YellowlegsScolopacidae52023-56%1992
Savannah SparrowPasserellidae52024-70%1992
Orange-crowned WarblerParulidae52024-45%1992
Trumpeter SwanAnatidae52008+150%1992
Ring-necked DuckAnatidae52017+22%2002
Sandhill CraneGruidae42024+300%1992
Fox SparrowPasserellidae42024-33%1992
Blackpoll WarblerParulidae42024-71%1992
American Three-toed WoodpeckerPicidae42022+167%2009
Northern ShovelerAnatidae41998n/an/a
Downy WoodpeckerPicidae42022-50%2021
Greater YellowlegsScolopacidae32023+40%1992
Olive-sided FlycatcherTyrannidae32023+43%1992
Canada JayCorvidae32024+91%1992
Wilson's WarblerParulidae32023-63%1992
Violet-green SwallowHirundinidae32012-11%1996
American WigeonAnatidae32000n/an/a
Short-billed GullLaridae22024-33%1992
Yellow WarblerParulidae22012+175%1998
Arctic TernLaridae22019-14%1993
Red-necked PhalaropeScolopacidae21987n/an/a
Common MerganserAnatidae22003+0%1992
Barrow's GoldeneyeAnatidae22003+50%1994
Green-winged TealAnatidae22003+100%1996
Bohemian WaxwingBombycillidae22011+100%1997
Least FlycatcherTyrannidae22010+100%2000

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