BirdAnalyst
BBS Route · Maine · BCR 14

Bowdoin Ctr Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 125 species recorded across 38 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 →
38Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2021Span
9Observers

Bird Species Found on Maine Bowdoin Ctr

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

Species recorded on the Bowdoin Ctr 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 VireoVireonidae552021+942%1976
Chipping SparrowPasserellidae482021+911%1976
American GoldfinchFringillidae472021+120%1975
American CrowCorvidae392021+252%1975
Song SparrowPasserellidae362021-9%1975
BobolinkIcteridae352013+269%1975
American RobinTurdidae322021+11%1975
OvenbirdParulidae262021+157%1975
Mourning DoveColumbidae242021+663%1976
Eastern PhoebeTyrannidae202021+275%1975
Tufted TitmouseParidae20202113×1995
House SparrowPasseridae182021+15%1975
Common YellowthroatParulidae172021+49%1975
Gray CatbirdMimidae172021+20%1975
Northern CardinalCardinalidae162021+360%1994
Black-capped ChickadeeParidae152021+450%1975
Cedar WaxwingBombycillidae142021+229%1975
White-breasted NuthatchSittidae142021+229%1980
Chestnut-sided WarblerParulidae132021+42%1977
European StarlingSturnidae112021-75%1975
Blue JayCorvidae102021+106%1976
Pine WarblerParulidae102021+260%1982
Downy WoodpeckerPicidae82021+367%1975
Cliff SwallowHirundinidae82013-17%1979
Barn SwallowHirundinidae82021-84%1975
Black-and-white WarblerParulidae82021+17%1980
VeeryTurdidae72021+41%1975
Least FlycatcherTyrannidae62013-44%1980
Eastern BluebirdTurdidae62021+167%2000
Hooded MerganserAnatidae61994n/an/a
Common RavenCorvidae52013+140%1977
Common GrackleIcteridae52021-62%1975
Eastern TowheePasserellidae51999-20%1976
Magnolia WarblerParulidae52013+100%1999
Yellow-bellied SapsuckerPicidae42021+467%1983
Red-winged BlackbirdIcteridae42021-87%1975
Canada GooseAnatidae42007n/an/a
Brown-headed CowbirdIcteridae32021-11%1975
Blue-headed VireoVireonidae32021+67%1983
American RedstartParulidae32021-20%1976

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