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BBS Route · Alaska · BCR 5

Mitkof Isle Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 69 species recorded across 30 survey years, still active.

69Species 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 →
30Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2024Span
9Observers

Bird Species Found on Alaska Mitkof Isle

Top 40 of 69 species by most recent count. Each links to its species trend.

Species recorded on the Mitkof Isle 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
Hermit ThrushTurdidae502024-1%1990
Varied ThrushTurdidae492024+6%1990
Townsend's WarblerParulidae382024+224%1990
Pacific WrenTroglodytidae332024-56%1990
Red-breasted SapsuckerPicidae282024-4%1990
Orange-crowned WarblerParulidae252024-8%1990
American RobinTurdidae202024+50%1990
Golden-crowned KingletRegulidae172024+47%1990
Harlequin DuckAnatidae161995-58%1990
Swainson's ThrushTurdidae152024+31%1990
Steller's JayCorvidae142024+74%1990
Glaucous-winged GullLaridae12201012×2009
Sooty GrousePhasianidae112024+157%2001
Lincoln's SparrowPasserellidae112024-33%1990
Chestnut-backed ChickadeeParidae112024-9%1990
Surf ScoterAnatidae111998-35%1996
Short-billed GullLaridae92012+275%1991
Olive-sided FlycatcherTyrannidae82013-44%1990
Common RavenCorvidae72024-7%1991
Rufous HummingbirdTrochilidae52022+25%1990
Brown CreeperCerthiidae52024+67%1990
Warbling VireoVireonidae52024+50%2007
American CrowCorvidae42024-76%1990
Greater YellowlegsScolopacidae32024+0%1991
Pine GrosbeakFringillidae31994+0%1990
Ruby-crowned KingletRegulidae32024-50%1990
Arctic TernLaridae31989n/an/a
Bonaparte's GullLaridae32010-25%1998
Black-legged KittiwakeLaridae32003n/an/a
Great Blue HeronArdeidae32008n/an/a
Belted KingfisherAlcedinidae22022+0%1991
Song SparrowPasserellidae22024-78%1990
Western TanagerCardinalidae22023+67%1990
Common YellowthroatParulidae22024+100%1990
Hairy WoodpeckerPicidae22024+0%1991
Red CrossbillFringillidae22022-93%1991
Pine SiskinFringillidae22022+650%1994
Tree SwallowHirundinidae22022+0%1991
Northern Pygmy-OwlStrigidae22019+50%1997
Gray-cheeked ThrushTurdidae22002+100%1996

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