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BBS Route · Alaska · BCR 4

Chatanika R Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 57 species recorded across 29 survey years, still active.

57Species 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 →
29Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2023Span
7Observers

Bird Species Found on Alaska Chatanika R

Top 40 of 57 species by most recent count. Each links to its species trend.

Species recorded on the Chatanika R 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
White-winged CrossbillFringillidae642023+433%1995
Swainson's ThrushTurdidae592023-31%1993
White-crowned SparrowPasserellidae462023+116%1993
Alder FlycatcherTyrannidae172023+28%1993
Fox SparrowPasserellidae172023+87%1993
Canada JayCorvidae142023+27%1993
Ruby-crowned KingletRegulidae122023-8%1993
Gray-cheeked ThrushTurdidae122023-71%1993
Varied ThrushTurdidae122023-35%1993
Wilson's WarblerParulidae92023+4%1993
Orange-crowned WarblerParulidae82023+35%1993
Greater White-fronted GooseAnatidae82004n/an/a
Lincoln's SparrowPasserellidae72023+17%1993
American Tree SparrowPasserellidae62015+67%1993
Bohemian WaxwingBombycillidae52023+400%1995
Hermit ThrushTurdidae42023+300%1997
Bank SwallowHirundinidae42021+100%2002
Blackpoll WarblerParulidae42019+300%2007
Yellow-bellied FlycatcherTyrannidae42023+100%2021
Common RavenCorvidae32021+140%1993
Northern WaterthrushParulidae32023+0%1993
American RobinTurdidae32023-38%1993
Yellow WarblerParulidae32023+0%1995
Common MerganserAnatidae22023+100%1997
Solitary SandpiperScolopacidae22019+33%2000
Say's PhoebeTyrannidae22019+100%1992
Hammond's FlycatcherTyrannidae22023-70%1994
Cliff SwallowHirundinidae22021-92%1992
Townsend's WarblerParulidae22009+67%1999
Least FlycatcherTyrannidae21993n/an/a
Boreal ChickadeeParidae22023+43%1995
Chipping SparrowPasserellidae22023-33%2012
Black-capped ChickadeeParidae22021-17%1997
Rough-legged HawkAccipitridae22008n/an/a
Savannah SparrowPasserellidae22022+100%2015
Western Wood-PeweeTyrannidae22021n/an/a
American Three-toed WoodpeckerPicidae22022n/an/a
Wilson's SnipeScolopacidae12019-20%1994
Spotted SandpiperScolopacidae11995-50%1992
Olive-sided FlycatcherTyrannidae12022-58%1993

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