BirdAnalyst
BBS Route · Massachusetts · BCR 30

Wellfleet Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 89 species recorded across 21 survey years, no longer active.

89Species 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 →
21Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2007Span
5Observers

Bird Species Found on Massachusetts Wellfleet

Top 40 of 89 species by most recent count. Each links to its species trend.

Species recorded on the Wellfleet 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
Black-capped ChickadeeParidae412007-10%1971
American GoldfinchFringillidae402007+800%1971
American RobinTurdidae402007-28%1971
Northern CardinalCardinalidae342007+304%1979
Red-winged BlackbirdIcteridae292007-61%1971
Gray CatbirdMimidae292007+9%1971
Common GrackleIcteridae252007-53%1971
Tufted TitmouseParidae252007+190%1987
American CrowCorvidae242007+2%1971
House FinchFringillidae232007+14%1979
House SparrowPasseridae192007-66%1971
Common YellowthroatParulidae162007-64%1971
Mourning DoveColumbidae152007-42%1971
Chipping SparrowPasserellidae112007-30%1971
Blue JayCorvidae102007-74%1971
European StarlingSturnidae102007-80%1971
Baltimore OrioleIcteridae92007-55%1971
Yellow WarblerParulidae92007-23%1971
Chimney SwiftApodidae71997-25%1971
Great Crested FlycatcherTyrannidae62007-5%1971
Eastern PhoebeTyrannidae52007+267%1995
Song SparrowPasserellidae52007-25%1971
Pine WarblerParulidae52007-13%1971
Herring GullLaridae42005-93%1971
Northern BobwhiteOdontophoridae42005-91%1971
Eastern Whip-poor-willCaprimulgidae41991+75%1975
Eastern TowheePasserellidae42007-93%1971
Tree SwallowHirundinidae42007-70%1971
Eastern KingbirdTyrannidae32007-62%1971
Grasshopper SparrowPasserellidae31966n/an/a
Cedar WaxwingBombycillidae32005+86%1971
Carolina WrenTroglodytidae32007+86%1990
Bank SwallowHirundinidae21966n/an/a
Black-and-white WarblerParulidae22007-72%1971
American RedstartParulidae21987-33%1970
Hermit ThrushTurdidae21998-44%1971
American Black DuckAnatidae21977+100%1970
Downy WoodpeckerPicidae22007+63%1975
OvenbirdParulidae22007+33%1986
Wood ThrushTurdidae21996-20%1975

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