BirdAnalyst
BBS Route · Maine · BCR 14

Greenwood Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 121 species recorded across 50 survey years, still active.

121Species 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 →
50Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2024Span
2Observers

Bird Species Found on Maine Greenwood

Top 40 of 121 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 VireoVireonidae322024+476%1972
American CrowCorvidae242024+63%1972
American RobinTurdidae202024-24%1972
Blue JayCorvidae162024+42%1972
Black-capped ChickadeeParidae152024+24%1972
OvenbirdParulidae152024+26%1973
Song SparrowPasserellidae142024+35%1972
American GoldfinchFringillidae132024+92%1973
Eastern PhoebeTyrannidae122024+167%1972
Common GrackleIcteridae112024-67%1972
Common YellowthroatParulidae112024+118%1972
Pine WarblerParulidae112024+850%2018
Chipping SparrowPasserellidae102024+188%1972
Cliff SwallowHirundinidae101994-10%1974
Red-winged BlackbirdIcteridae82024-69%1972
White-breasted NuthatchSittidae82024+220%1974
MallardAnatidae82024+4%1992
Cedar WaxwingBombycillidae72024+71%1972
Hermit ThrushTurdidae72023+138%1976
Northern House WrenTroglodytidae62024+120%1982
Mourning DoveColumbidae52024+500%1974
Yellow-bellied SapsuckerPicidae52024+450%1975
Tufted TitmouseParidae52024+667%1997
Wild TurkeyPhasianidae52019+100%2009
Tree SwallowHirundinidae42024-71%1972
Gray CatbirdMimidae42024-69%1972
VeeryTurdidae42024-76%1973
Swamp SparrowPasserellidae42024+125%2006
Red-breasted NuthatchSittidae42023+120%1977
Rock PigeonColumbidae42024+120%1988
Common MerganserAnatidae42014+300%1992
Alder FlycatcherTyrannidae42021+17%2008
Pileated WoodpeckerPicidae32024+17%1972
European StarlingSturnidae32024-87%1972
Barn SwallowHirundinidae32024-79%1972
Black-and-white WarblerParulidae32024+375%1972
Black-throated Blue WarblerParulidae32022-17%1977
Chestnut-sided WarblerParulidae32024+8%1972
Eastern Wood-PeweeTyrannidae32024-22%1973
Common LoonGaviidae32024+100%1989

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