BirdAnalyst
BBS Route · Maine · BCR 14

South Arm Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 125 species recorded across 27 survey years, still active.

125Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1975–2014Span
5Observers

Bird Species Found on Maine South Arm

Top 40 of 125 species by most recent count. Each links to its species trend.

Species recorded on the South Arm 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
Canada GooseAnatidae27201214×2008
Red-eyed VireoVireonidae212014+63%1984
American RobinTurdidae172014-72%1978
OvenbirdParulidae92014-42%1983
European StarlingSturnidae82014-95%1978
Mourning DoveColumbidae62014-49%1978
Yellow-bellied SapsuckerPicidae62013+160%1979
Common RavenCorvidae62013-8%1984
Eastern TowheePasserellidae51999+50%1997
Hermit ThrushTurdidae52014-7%1983
Blue JayCorvidae42014-80%1978
American GoldfinchFringillidae42014-86%1978
Indigo BuntingCardinalidae41999-25%1990
Magnolia WarblerParulidae42013-70%1985
Rock PigeonColumbidae31998-8%1978
American CrowCorvidae32014-61%1978
Chipping SparrowPasserellidae32014-71%1979
Song SparrowPasserellidae32013-85%1978
Barn SwallowHirundinidae32014-97%1978
Tree SwallowHirundinidae32014-96%1978
Wood ThrushTurdidae32013-64%1978
Pine WarblerParulidae32014+75%1985
American KestrelFalconidae31990+200%1978
Evening GrosbeakFringillidae31985-78%1983
Yellow-bellied FlycatcherTyrannidae31988+100%1984
Northern ParulaParulidae32013+13%1987
Winter WrenTroglodytidae32009-78%1985
American Black DuckAnatidae22012-64%1979
Rusty BlackbirdIcteridae21988-73%1985
Common YellowthroatParulidae22014-33%1978
Black-capped ChickadeeParidae22013-84%1978
Belted KingfisherAlcedinidae21997+33%1983
Ruby-crowned KingletRegulidae21999-11%1996
Alder FlycatcherTyrannidae21992+25%1985
Cliff SwallowHirundinidae22009-64%1986
Bicknell's ThrushTurdidae21996-43%1985
Common MerganserAnatidae21994+100%1984
MallardAnatidae22012+100%1984
Black-throated Green WarblerParulidae22012+150%1987
Warbling VireoVireonidae22008+67%1993

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