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BBS Route · Maine · BCR 14

Hudson Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 114 species recorded across 27 survey years, still active.

114Species 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 →
1973–2016Span
5Observers

Bird Species Found on Maine Hudson

Top 40 of 114 species by most recent count. Each links to its species trend.

Species recorded on the Hudson 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 VireoVireonidae442016+135%1975
American CrowCorvidae412016+16%1975
Common YellowthroatParulidae402016+48%1975
OvenbirdParulidae332016+33%1975
American RobinTurdidae332016-32%1975
Cedar WaxwingBombycillidae292016+137%1975
Blue JayCorvidae242016+40%1975
Mourning DoveColumbidae222016+160%1975
Northern ParulaParulidae212016+255%1975
Song SparrowPasserellidae162016-46%1975
Black-and-white WarblerParulidae162016+73%1975
Chestnut-sided WarblerParulidae162016+19%1975
Hermit ThrushTurdidae162016-14%1975
White-throated SparrowPasserellidae152016-21%1975
Chipping SparrowPasserellidae152016+78%1975
Gray CatbirdMimidae122016+0%1975
VeeryTurdidae112016-16%1975
American GoldfinchFringillidae102016+19%1975
Red-breasted NuthatchSittidae92016+0%1975
Black-capped ChickadeeParidae92016-21%1975
Black-throated Blue WarblerParulidae92016+86%1977
Yellow-bellied SapsuckerPicidae72016+400%1976
European StarlingSturnidae72016-59%1975
Common GrackleIcteridae72016-32%1975
Wood ThrushTurdidae72009-79%1975
Chimney SwiftApodidae62016-31%1975
Red-winged BlackbirdIcteridae62016-80%1975
Nashville WarblerParulidae62009+22%1977
Pine SiskinFringillidae61992+200%1990
Eastern KingbirdTyrannidae52000+57%1975
Alder FlycatcherTyrannidae52016+20%1975
Blue-headed VireoVireonidae52016-29%1975
Winter WrenTroglodytidae52016-25%1975
White-breasted NuthatchSittidae51999+250%1975
Common MerganserAnatidae51995n/an/a
Black-throated Green WarblerParulidae42016+175%1979
Pine WarblerParulidae42016+0%1995
American BitternArdeidae32009+17%1977
Savannah SparrowPasserellidae32016-40%1975
Barn SwallowHirundinidae32000-91%1975

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