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BBS Route · Alaska · BCR 4

Chicken Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 56 species recorded across 18 survey years, still active.

56Species 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 →
18Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1992–2025Span
4Observers

Bird Species Found on Alaska Chicken

Top 40 of 56 species by most recent count. Each links to its species trend.

Species recorded on the Chicken 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 ThrushTurdidae712025+4%1994
White-crowned SparrowPasserellidae572025+0%1994
Alder FlycatcherTyrannidae272025-41%1994
American RobinTurdidae222025-16%1994
Varied ThrushTurdidae222025-5%1994
Orange-crowned WarblerParulidae162025-46%1994
Gray-cheeked ThrushTurdidae162025+90%1994
Hammond's FlycatcherTyrannidae122025+0%1994
Lincoln's SparrowPasserellidae122025+30%1994
Fox SparrowPasserellidae122025+154%1994
Ruby-crowned KingletRegulidae102025+100%1994
Pine SiskinFringillidae92021n/an/a
Canada JayCorvidae72025+22%1994
Yellow WarblerParulidae62025+25%1996
Yellow-bellied FlycatcherTyrannidae62025+283%2013
Wilson's WarblerParulidae52025-33%1994
Boreal ChickadeeParidae52025+200%1994
Western Wood-PeweeTyrannidae52025+300%2016
Townsend's WarblerParulidae52024+60%2021
Cliff SwallowHirundinidae42025+13%1997
Violet-green SwallowHirundinidae42024+20%2019
Northern WaterthrushParulidae42025+50%1996
BuffleheadAnatidae41994n/an/a
Green-winged TealAnatidae32024+50%1992
Wilson's SnipeScolopacidae32025+0%1994
Common RavenCorvidae32025+14%1994
White-winged CrossbillFringillidae32025+97%1994
Townsend's SolitaireTurdidae32025+14%1997
Bohemian WaxwingBombycillidae22025+0%2014
Hermit ThrushTurdidae22023-33%1994
Hairy WoodpeckerPicidae22019n/an/a
American Three-toed WoodpeckerPicidae22024+0%2022
MallardAnatidae22023n/an/a
Solitary SandpiperScolopacidae12024+0%2021
Spotted SandpiperScolopacidae12025+25%1994
Say's PhoebeTyrannidae12024+50%2017
American GoshawkAccipitridae11993n/an/a
Olive-sided FlycatcherTyrannidae12025+0%2016
Lesser YellowlegsScolopacidae11994n/an/a
MerlinFalconidae11994n/an/a

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