BirdAnalyst
BBS Route · Maine · BCR 14

Greenwood Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 122 species recorded across 51 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 →
51Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
2Observers

Bird Species Found on Maine Greenwood

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

Species recorded on the Greenwood 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 VireoVireonidae562025+619%1972
Chipping SparrowPasserellidae262025+259%1972
American CrowCorvidae242025+41%1972
OvenbirdParulidae242025+47%1973
American RobinTurdidae212025-30%1972
Eastern PhoebeTyrannidae202025+217%1972
Common YellowthroatParulidae202025+206%1972
Black-capped ChickadeeParidae192025+34%1972
Blue JayCorvidae152025+46%1972
Song SparrowPasserellidae152025+41%1972
American GoldfinchFringillidae152025+72%1973
Tufted TitmouseParidae12202511×1997
Cliff SwallowHirundinidae101994-10%1974
Cedar WaxwingBombycillidae92025+157%1972
Pine WarblerParulidae92025+211%2022
Rock PigeonColumbidae82025+240%1988
Northern CardinalCardinalidae82025+333%2009
Mourning DoveColumbidae72025+475%1974
Black-and-white WarblerParulidae72025+350%1972
White-breasted NuthatchSittidae72025+300%1974
Downy WoodpeckerPicidae62025+300%1973
MallardAnatidae62025-36%1992
Red-winged BlackbirdIcteridae52025-67%1972
Northern House WrenTroglodytidae52025+180%1982
Wild TurkeyPhasianidae52019+100%2009
Chestnut-sided WarblerParulidae42025-17%1972
American RedstartParulidae42025-55%1973
Yellow-bellied SapsuckerPicidae42025+400%1975
Swamp SparrowPasserellidae42025+200%2006
Common RavenCorvidae42025+29%1989
Common MerganserAnatidae42014+300%1992
Alder FlycatcherTyrannidae42021+17%2008
Pileated WoodpeckerPicidae32024+17%1972
Chimney SwiftApodidae32025-61%1972
Barn SwallowHirundinidae32024-79%1972
Black-throated Blue WarblerParulidae32022-17%1977
Gray CatbirdMimidae32025-69%1972
Eastern BluebirdTurdidae32025-17%1974
Eastern Wood-PeweeTyrannidae32025+0%1973
VeeryTurdidae32025-68%1973

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