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BBS Route · Alaska · BCR 4

Skilak Lake Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 53 species recorded across 6 survey years, no longer active.

53Species 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 →
6Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1977–1985Span
2Observers

Bird Species Found on Alaska Skilak Lake

Top 40 of 53 species by most recent count. Each links to its species trend.

Species recorded on the Skilak Lake 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
Swainson's ThrushTurdidae521985+59%1982
White-crowned SparrowPasserellidae321985-49%1982
Gray-cheeked ThrushTurdidae241985+47%1983
Alder FlycatcherTyrannidae231985+18%1982
Ruby-crowned KingletRegulidae231985+217%1983
Tree SwallowHirundinidae211985+172%1982
Blackpoll WarblerParulidae211985+44%1982
American RobinTurdidae161985-56%1982
Varied ThrushTurdidae141985+246%1982
Savannah SparrowPasserellidae111985-8%1982
Northern WaterthrushParulidae71985+300%1982
Orange-crowned WarblerParulidae51985+0%1982
Olive-sided FlycatcherTyrannidae51985+25%1982
Canada JayCorvidae41985+0%1982
Common LoonGaviidae41985+33%1978
Common RavenCorvidae31985+114%1982
Boreal ChickadeeParidae31985+150%1983
Glaucous GullLaridae31978n/an/a
Say's PhoebeTyrannidae31983-40%1978
Cliff SwallowHirundinidae31983+200%1978
Western Wood-PeweeTyrannidae31982n/an/a
Bohemian WaxwingBombycillidae21984-33%1977
Hairy WoodpeckerPicidae21983+0%1982
Arctic TernLaridae11985-50%1977
Wilson's SnipeScolopacidae11985+50%1978
Pine SiskinFringillidae11984-94%1977
American Tree SparrowPasserellidae11977n/an/a
Song SparrowPasserellidae11985+250%1978
Violet-green SwallowHirundinidae11985-33%1978
Bank SwallowHirundinidae11984-35%1978
Yellow WarblerParulidae11984+0%1982
Brown CreeperCerthiidae11977n/an/a
Short-billed GullLaridae11984-50%1978
Pine GrosbeakFringillidae11978n/an/a
Wilson's WarblerParulidae11978n/an/a
Black-capped ChickadeeParidae11985+0%1982
Hermit ThrushTurdidae11985-50%1978
Bonaparte's GullLaridae11983+0%1982
Greater YellowlegsScolopacidae11985-50%1982
Golden-crowned SparrowPasserellidae11982n/an/a

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