BirdAnalyst
BBS Route · Alaska · BCR 4

Unalakleet River Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 71 species recorded across 27 survey years, still active.

71Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1996–2024Span
1Observers

Bird Species Found on Alaska Unalakleet River

Top 40 of 71 species by most recent count. Each links to its species trend.

Species recorded on the Unalakleet River 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
Northern WaterthrushParulidae1072024+288%1999
Orange-crowned WarblerParulidae372022+521%1999
Gray-cheeked ThrushTurdidae29202415×2002
Varied ThrushTurdidae272024-1%1998
Yellow WarblerParulidae262024+148%2000
Swainson's ThrushTurdidae26202417×1999
Fox SparrowPasserellidae202024+102%1998
Tree SwallowHirundinidae122023+25%2001
Common GoldeneyeAnatidae102024+183%2009
Wilson's SnipeScolopacidae92024+4%1998
Spotted SandpiperScolopacidae92024-20%1998
Canada JayCorvidae92024-37%1998
Green-winged TealAnatidae82024-39%1998
Pine GrosbeakFringillidae82024+225%2015
Wilson's WarblerParulidae72024+17%2000
Harlequin DuckAnatidae62023-57%1998
Olive-sided FlycatcherTyrannidae62024-9%1999
White-crowned SparrowPasserellidae62024+83%2000
Red-breasted MerganserAnatidae52024+33%1998
Blackpoll WarblerParulidae52024-75%1998
American WigeonAnatidae52024+31%1999
Lincoln's SparrowPasserellidae52024+22%2018
Solitary SandpiperScolopacidae42003+300%1996
Canada GooseAnatidae42008-10%2000
Hairy WoodpeckerPicidae42022+67%2012
Arctic TernLaridae32017-20%1998
Tundra SwanAnatidae32019+100%1999
Hermit ThrushTurdidae32023-70%1998
Alder FlycatcherTyrannidae32024-35%1999
Common MerganserAnatidae32024+43%2000
Herring GullLaridae31999n/an/a
Cliff SwallowHirundinidae32000n/an/a
Bohemian WaxwingBombycillidae32019-81%2009
Red-necked PhalaropeScolopacidae32001n/an/a
Rough-legged HawkAccipitridae32017+133%2011
MallardAnatidae32023+100%2017
Northern ShovelerAnatidae32024+200%2022
Pacific LoonGaviidae22017+150%1998
Glaucous-winged GullLaridae22024-33%2001
Short-billed GullLaridae22016-68%1998

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