BirdAnalyst
BBS Route · Maine · BCR 14

Castine Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 105 species recorded across 18 survey years, still active.

105Species 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 →
18Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1976–2006Span
3Observers

Bird Species Found on Maine Castine

Top 40 of 105 species by most recent count. Each links to its species trend.

Species recorded on the Castine 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
American CrowCorvidae722006+197%1982
American RobinTurdidae302006-40%1982
Red-eyed VireoVireonidae282006-16%1982
European StarlingSturnidae192006-45%1982
Song SparrowPasserellidae192006-23%1982
American GoldfinchFringillidae172006-26%1982
Chestnut-sided WarblerParulidae172006-50%1982
OvenbirdParulidae172006-56%1982
Mourning DoveColumbidae162006+32%1986
Black-capped ChickadeeParidae142006-11%1982
Blue-headed VireoVireonidae142006+200%1986
Common YellowthroatParulidae122006-70%1982
Eastern PhoebeTyrannidae102006+146%1982
Cliff SwallowHirundinidae102000-80%1983
Blue JayCorvidae92006-46%1982
Common GrackleIcteridae92006-43%1982
Winter WrenTroglodytidae92005+120%1982
White-throated SparrowPasserellidae82006-76%1982
Cedar WaxwingBombycillidae82006-80%1982
Black-throated Green WarblerParulidae82006-60%1982
Alder FlycatcherTyrannidae72006-55%1982
VeeryTurdidae62006-70%1982
Common RavenCorvidae52006+67%1992
Chipping SparrowPasserellidae52006-36%1982
Northern ParulaParulidae52006-63%1982
Belted KingfisherAlcedinidae41986+300%1976
Eastern MeadowlarkIcteridae41986+75%1977
Nashville WarblerParulidae42005-50%1982
Hermit ThrushTurdidae42006+8%1983
Common MerganserAnatidae41986n/an/a
Wild TurkeyPhasianidae42005n/an/a
Double-crested CormorantPhalacrocoracidae32006+200%1995
Hairy WoodpeckerPicidae32005+0%1983
Yellow-bellied SapsuckerPicidae32006-30%1982
Chimney SwiftApodidae32000-60%1982
Red-winged BlackbirdIcteridae32006-76%1982
Golden-crowned KingletRegulidae31995+200%1983
Common LoonGaviidae22005+40%1982
Eastern KingbirdTyrannidae22000-29%1982
Great Crested FlycatcherTyrannidae22005+0%1982

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