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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 31 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2025Span
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
Varied ThrushTurdidae532025+4%1990
Hermit ThrushTurdidae492025+6%1990
Pacific WrenTroglodytidae402025-46%1990
Steller's JayCorvidae312025+137%1990
Townsend's WarblerParulidae202025+193%1990
Golden-crowned KingletRegulidae192025+56%1990
Lincoln's SparrowPasserellidae182025-5%1990
Harlequin DuckAnatidae161995-58%1990
Orange-crowned WarblerParulidae122025-21%1990
Glaucous-winged GullLaridae12201012×2009
Swainson's ThrushTurdidae112025+39%1990
Surf ScoterAnatidae111998-35%1996
Red-breasted SapsuckerPicidae102025+2%1990
Chestnut-backed ChickadeeParidae102025+0%1990
American RobinTurdidae92025+36%1990
Short-billed GullLaridae92012+275%1991
Olive-sided FlycatcherTyrannidae82013-44%1990
Tree SwallowHirundinidae52025+100%1991
Marbled MurreletAlcidae42025-84%1990
Belted KingfisherAlcedinidae42025+50%1991
Common RavenCorvidae42025-7%1991
Greater YellowlegsScolopacidae32024+0%1991
American CrowCorvidae32025-80%1990
Pine GrosbeakFringillidae31994+0%1990
Common YellowthroatParulidae32025+60%1990
Brown CreeperCerthiidae32025+83%1990
Ruby-crowned KingletRegulidae32024-50%1990
Arctic TernLaridae31989n/an/a
Bald EagleAccipitridae32025-63%1991
Bonaparte's GullLaridae32010-25%1998
Black-legged KittiwakeLaridae32003n/an/a
Great Blue HeronArdeidae32008n/an/a
Song SparrowPasserellidae22025-72%1990
Western TanagerCardinalidae22023+67%1990
Hairy WoodpeckerPicidae22024+0%1991
Red CrossbillFringillidae22022-93%1991
Pine SiskinFringillidae22022+650%1994
Northern Pygmy-OwlStrigidae22019+50%1997
Gray-cheeked ThrushTurdidae22002+100%1996
Northern HarrierAccipitridae22002n/an/a

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