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BBS Route · Maine · BCR 14

Wilson Mills Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 122 species recorded across 41 survey years, still active.

122Species 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 →
41Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1983–2024Span
4Observers

Bird Species Found on Maine Wilson Mills

Top 40 of 122 species by most recent count. Each links to its species trend.

Species recorded on the Wilson Mills 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
Red-eyed VireoVireonidae302024-4%1985
White-throated SparrowPasserellidae242024-76%1985
Winter WrenTroglodytidae232024+10%1985
Black-throated Green WarblerParulidae212024+200%1985
Swainson's ThrushTurdidae212024-42%1985
Blue-headed VireoVireonidae152024+219%1985
OvenbirdParulidae142024+6%1985
Magnolia WarblerParulidae132024-24%1985
Northern ParulaParulidae122024+90%1985
Black-capped ChickadeeParidae122024-23%1985
Hermit ThrushTurdidae122024+79%1985
Red-breasted NuthatchSittidae112024-4%1985
American RobinTurdidae102024-45%1985
American CrowCorvidae82024-47%1985
Wood DuckAnatidae71994n/an/a
Blackburnian WarblerParulidae62024-17%1985
American KestrelFalconidae51993+200%1984
Nashville WarblerParulidae52024-61%1985
American RedstartParulidae52024-73%1985
Turkey VultureCathartidae52024+400%2023
Yellow-bellied FlycatcherTyrannidae42024+14%1985
Blue JayCorvidae42024-68%1985
Common RavenCorvidae42024+19%1985
Cedar WaxwingBombycillidae42022-83%1985
Black-throated Blue WarblerParulidae42024-11%1985
Canada WarblerParulidae42024-18%1985
Hairy WoodpeckerPicidae32024+40%1985
Yellow-bellied SapsuckerPicidae32024-30%1985
Pileated WoodpeckerPicidae32024+180%1985
Least FlycatcherTyrannidae32024-76%1985
Evening GrosbeakFringillidae32007-11%1985
Purple FinchFringillidae32024-75%1985
Pine SiskinFringillidae32018-69%1986
Common YellowthroatParulidae32024-76%1985
Common LoonGaviidae32024-35%1986
Cliff SwallowHirundinidae32003-57%1993
Alder FlycatcherTyrannidae32024+14%1988
Red CrossbillFringillidae32024-29%2002
Canada GooseAnatidae32024+40%2002
Downy WoodpeckerPicidae22023-64%1985

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