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BBS Route · Alaska · BCR 4

Chistochina Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 79 species recorded across 21 survey years, still active.

79Species 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 →
21Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2024Span
4Observers

Bird Species Found on Alaska Chistochina

Top 40 of 79 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 ThrushTurdidae1082024+15%1992
White-winged CrossbillFringillidae482024+23%1992
American RobinTurdidae372024+75%1992
Alder FlycatcherTyrannidae312024-24%1992
Northern WaterthrushParulidae142024-40%1992
Herring GullLaridae132024+167%1992
Orange-crowned WarblerParulidae122024-23%1992
Ruby-crowned KingletRegulidae112024-57%1992
Violet-green SwallowHirundinidae102022+229%1998
Olive-sided FlycatcherTyrannidae72022-14%1993
Canada GooseAnatidae62023+260%1992
Canada JayCorvidae62024-59%1992
Lincoln's SparrowPasserellidae62024-18%1992
Bank SwallowHirundinidae62024+400%1995
Boreal ChickadeeParidae62024+0%1992
Varied ThrushTurdidae62024-60%1992
Say's PhoebeTyrannidae62008n/an/a
White-crowned SparrowPasserellidae52024-59%1992
Fox SparrowPasserellidae52024-58%1992
Pine GrosbeakFringillidae42023+89%1992
Gray-cheeked ThrushTurdidae42024-79%1992
Trumpeter SwanAnatidae42022+17%1994
American Tree SparrowPasserellidae42023+0%2000
Lesser ScaupAnatidae42008+14%1996
American WigeonAnatidae42022+280%1999
Wilson's SnipeScolopacidae32024-11%1992
Solitary SandpiperScolopacidae31997-47%1992
Savannah SparrowPasserellidae32024-81%1992
Common GoldeneyeAnatidae32022+160%2008
Semipalmated PloverCharadriidae31995n/an/a
Greater ScaupAnatidae32021+200%1998
Greater YellowlegsScolopacidae32021-20%1999
Bonaparte's GullLaridae21993+100%1990
Lesser YellowlegsScolopacidae22022-6%1992
Common RavenCorvidae22024+10%1992
Wilson's WarblerParulidae22024-86%1992
Green-winged TealAnatidae22023-20%1996
Spotted SandpiperScolopacidae22022+75%1993
Tree SwallowHirundinidae22024-25%1993
Yellow WarblerParulidae22024+20%1996

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