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BBS Route · Alaska · BCR 4

Monahan Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 94 species recorded across 25 survey years, still active.

94Species 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 →
25Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1983–2025Span
9Observers

Bird Species Found on Alaska Monahan

Top 40 of 94 species by most recent count. Each links to its species trend.

Species recorded on the Monahan 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-crowned SparrowPasserellidae712025+47%1987
American WigeonAnatidae272017+983%1991
American Tree SparrowPasserellidae202021-78%1987
Wilson's WarblerParulidae192021-46%1987
Blackpoll WarblerParulidae182021+19%1987
Gray-cheeked ThrushTurdidae132025-37%1987
Greater YellowlegsScolopacidae12199312×1992
Swainson's ThrushTurdidae122025+267%1999
BuffleheadAnatidae82017+150%1991
Trumpeter SwanAnatidae82025-29%1987
Red-necked PhalaropeScolopacidae62013-33%1987
Orange-crowned WarblerParulidae6202512×1987
Surf ScoterAnatidae61999n/an/a
American RobinTurdidae52025-70%1987
Northern PintailAnatidae52013+400%1986
Lesser ScaupAnatidae52015-63%1991
Northern ShovelerAnatidae52017-36%1999
Wilson's SnipeScolopacidae42025-84%1987
Common RavenCorvidae42021-6%1987
Boreal ChickadeeParidae42025+100%2000
Least SandpiperScolopacidae42016+0%1997
White-winged CrossbillFringillidae42025-40%1999
Bonaparte's GullLaridae32016+167%1993
Ring-necked DuckAnatidae32003+200%1983
Semipalmated PloverCharadriidae32010-43%1991
Smith's LongspurCalcariidae31983n/an/a
Savannah SparrowPasserellidae32025-16%1987
Varied ThrushTurdidae32025-8%1987
Bohemian WaxwingBombycillidae32021-25%2001
Solitary SandpiperScolopacidae32021+150%2003
Tree SwallowHirundinidae32018+133%2001
Herring GullLaridae22021-33%1991
Greater ScaupAnatidae22014-23%2000
White-winged ScoterAnatidae22003-47%1992
Canada GooseAnatidae22014-46%1987
Lesser YellowlegsScolopacidae22025-49%1987
American Golden-PloverCharadriidae22011-40%1991
Willow PtarmiganPhasianidae22018+50%2004
Lapland LongspurCalcariidae22000+100%1983
Fox SparrowPasserellidae22025-24%1987

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