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BBS Route · Alaska · BCR 4

Chistochina Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 80 species recorded across 22 survey years, still active.

80Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2025Span
4Observers

Bird Species Found on Alaska Chistochina

Top 40 of 80 species by most recent count. Each links to its species trend.

Species recorded on the Chistochina 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 ThrushTurdidae932025+13%1992
White-winged CrossbillFringillidae482024+23%1992
Alder FlycatcherTyrannidae402025-20%1992
American RobinTurdidae392025+92%1992
Canada JayCorvidae262025-36%1992
Varied ThrushTurdidae242025-50%1992
Northern WaterthrushParulidae142024-40%1992
Herring GullLaridae132024+167%1992
Ruby-crowned KingletRegulidae132025-41%1992
Short-billed GullLaridae102025+225%1992
Lincoln's SparrowPasserellidae102025+29%1992
Wilson's WarblerParulidae92025-59%1992
Wilson's SnipeScolopacidae82025+67%1992
Bank SwallowHirundinidae62024+400%1995
Say's PhoebeTyrannidae62008n/an/a
White-crowned SparrowPasserellidae52025-69%1992
Orange-crowned WarblerParulidae52025-8%1992
Boreal ChickadeeParidae52025+13%1992
Lesser YellowlegsScolopacidae42025-13%1992
Pine GrosbeakFringillidae42023+89%1992
Savannah SparrowPasserellidae42025-73%1992
Trumpeter SwanAnatidae42022+17%1994
Lesser ScaupAnatidae42008+14%1996
Olive-sided FlycatcherTyrannidae32025-29%1993
Common GoldeneyeAnatidae32022+160%2008
Yellow WarblerParulidae32025+20%1996
Violet-green SwallowHirundinidae32025+214%1998
Semipalmated PloverCharadriidae31995n/an/a
Greater ScaupAnatidae32021+200%1998
Greater YellowlegsScolopacidae32021-20%1999
Chipping SparrowPasserellidae32025+100%2008
Black-capped ChickadeeParidae32025+0%2023
Hermit ThrushTurdidae32025-13%2009
Bonaparte's GullLaridae21993+100%1990
Solitary SandpiperScolopacidae22025-53%1992
Bald EagleAccipitridae22025+0%1992
Common RavenCorvidae22025-20%1992
Fox SparrowPasserellidae22025-78%1992
Blackpoll WarblerParulidae22025-20%1994
Green-winged TealAnatidae22025+0%1996

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