BirdAnalyst
BBS Route · Maine · BCR 14

Charleston Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 125 species recorded across 36 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1975–2019Span
6Observers

Bird Species Found on Maine Charleston

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

Species recorded on the Charleston 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
OvenbirdParulidae572019+136%1978
Red-eyed VireoVireonidae402019+115%1978
Black-capped ChickadeeParidae332019+121%1978
Chipping SparrowPasserellidae322019+150%1978
Common YellowthroatParulidae322019+230%1978
American CrowCorvidae292019+60%1978
American RobinTurdidae292019-35%1978
Song SparrowPasserellidae252019+0%1978
Cedar WaxwingBombycillidae252019+246%1980
Hermit ThrushTurdidae232019+843%1978
Black-throated Blue WarblerParulidae202019+567%1987
American GoldfinchFringillidae182019+24%1978
Northern ParulaParulidae182019+456%1978
Yellow-bellied SapsuckerPicidae162019+240%1978
White-throated SparrowPasserellidae162019-62%1978
Black-and-white WarblerParulidae162019+167%1978
Eastern PhoebeTyrannidae152019+113%1978
Blue JayCorvidae152019+86%1978
Barn SwallowHirundinidae152018-39%1978
Pine WarblerParulidae152019+200%2009
Mourning DoveColumbidae142019+136%1987
Yellow WarblerParulidae132019+21%1978
Winter WrenTroglodytidae132019+300%1988
Common GrackleIcteridae122019-45%1978
Pine SiskinFringillidae121992n/an/a
Red-winged BlackbirdIcteridae112019-29%1978
Tree SwallowHirundinidae102019-61%1978
Chestnut-sided WarblerParulidae102019+81%1980
Blue-headed VireoVireonidae102019+18%1989
Chimney SwiftApodidae92019+89%1981
Gray CatbirdMimidae92019-9%1978
Hairy WoodpeckerPicidae72019+350%1989
Black-throated Green WarblerParulidae72019+360%1989
Red CrossbillFringillidae72017n/an/a
Nashville WarblerParulidae62019-46%1988
Rock PigeonColumbidae62019+47%1992
Purple FinchFringillidae52017-11%1978
Philadelphia VireoVireonidae52019+67%1975
Indigo BuntingCardinalidae52019+400%1989
Bay-breasted WarblerParulidae52016+400%1994

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