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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 31 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 →
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 →
1968–2025Span
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
Swainson's ThrushTurdidae752025-5%1993
White-crowned SparrowPasserellidae422025+63%1993
Canada JayCorvidae162025+3%1993
Fox SparrowPasserellidae132025+90%1993
Alder FlycatcherTyrannidae112025+0%1993
Ruby-crowned KingletRegulidae112025+25%1993
Gray-cheeked ThrushTurdidae112025-55%1993
Greater White-fronted GooseAnatidae82004n/an/a
Lincoln's SparrowPasserellidae72023+17%1993
Olive-sided FlycatcherTyrannidae62024-33%1993
American Tree SparrowPasserellidae62015+67%1993
American RobinTurdidae62024-24%1993
Varied ThrushTurdidae62025-17%1993
Common RavenCorvidae52024+140%1993
Orange-crowned WarblerParulidae52025-26%1993
Wilson's WarblerParulidae52025+20%1993
Bohemian WaxwingBombycillidae52023+400%1995
Bank SwallowHirundinidae42021+100%2002
Spotted SandpiperScolopacidae32024-33%1993
Yellow-bellied FlycatcherTyrannidae32025+133%2022
Common MerganserAnatidae22023+100%1997
Solitary SandpiperScolopacidae22019+33%2000
Say's PhoebeTyrannidae22019+100%1992
Cliff SwallowHirundinidae22021-92%1992
Townsend's WarblerParulidae22025+100%1999
Hermit ThrushTurdidae22025+75%1997
Least FlycatcherTyrannidae21993n/an/a
Yellow WarblerParulidae22024-25%1995
Boreal ChickadeeParidae22023+43%1995
Chipping SparrowPasserellidae22023-33%2012
Black-capped ChickadeeParidae22021-17%1997
Rough-legged HawkAccipitridae22008n/an/a
Western Wood-PeweeTyrannidae22021n/an/a
American Three-toed WoodpeckerPicidae22022n/an/a
Wilson's SnipeScolopacidae12019-20%1994
Pine GrosbeakFringillidae12023-67%2008
Northern WaterthrushParulidae12024+0%1993
Hammond's FlycatcherTyrannidae12025-67%1994
Tree SwallowHirundinidae12024+0%2019
Violet-green SwallowHirundinidae12024-80%1994

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