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BBS Route · Alaska · BCR 2

St. Mary'S Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 60 species recorded across 12 survey years, still active.

60Species 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 →
12Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1993–2014Span
2Observers

Bird Species Found on Alaska St. Mary'S

Top 40 of 60 species by most recent count. Each links to its species trend.

Species recorded on the St. Mary'S 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
Fox SparrowPasserellidae682014+14%1995
Savannah SparrowPasserellidae552014-6%1995
Orange-crowned WarblerParulidae442014-49%1995
White-crowned SparrowPasserellidae382014-23%1995
Yellow WarblerParulidae312014+66%1995
Varied ThrushTurdidae202014-7%1995
Lapland LongspurCalcariidae182014-60%1995
Wilson's WarblerParulidae162014-17%1995
American RobinTurdidae162014-30%1995
American Tree SparrowPasserellidae152014-49%1995
Gray-cheeked ThrushTurdidae142014-56%1995
Wilson's SnipeScolopacidae132014-30%1995
Sandhill CraneGruidae102012+60%1998
Lincoln's SparrowPasserellidae82014+111%1996
Pacific Golden-PloverCharadriidae72014-45%1995
Northern WaterthrushParulidae72014+9%1995
SurfbirdScolopacidae71994n/an/a
Long-tailed JaegerStercorariidae62014-57%1995
Common RavenCorvidae62014+422%1995
Blackpoll WarblerParulidae62014-40%1995
Arctic WarblerPhylloscopidae52014-65%1995
Glaucous GullLaridae52011+67%1994
Alder FlycatcherTyrannidae42014-63%1995
Tree SwallowHirundinidae42012+36%1996
WhimbrelScolopacidae32014-85%1995
Bristle-thighed CurlewScolopacidae32014-8%1995
Arctic TernLaridae31994n/an/a
Semipalmated PloverCharadriidae32000n/an/a
Short-billed GullLaridae22014+129%1995
Greater White-fronted GooseAnatidae22002+0%1993
Tundra SwanAnatidae22000-77%1994
Least SandpiperScolopacidae22011-80%1995
Willow PtarmiganPhasianidae22014+11%1995
Hermit ThrushTurdidae22014+0%1997
Short-eared OwlStrigidae21998+100%1995
Canada JayCorvidae21999n/an/a
American WigeonAnatidae11998+0%1993
Canada GooseAnatidae12000-80%1993
Short-billed DowitcherScolopacidae11993n/an/a
Western SandpiperScolopacidae12000-67%1994

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