BirdAnalyst
BBS Route · Massachusetts · BCR 30

Marion Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 117 species recorded across 42 survey years, still active.

117Species 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 →
42Years 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
6Observers

Bird Species Found on Massachusetts Marion

Top 40 of 117 species by most recent count. Each links to its species trend.

Species recorded on the Marion 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
European StarlingSturnidae2062024+25%1969
Gray CatbirdMimidae622024+160%1969
American RobinTurdidae532024-42%1969
Northern CardinalCardinalidae51202419×1974
Carolina WrenTroglodytidae42202434×1980
Chipping SparrowPasserellidae402024+35%1970
Tufted TitmouseParidae402024+960%1973
American GoldfinchFringillidae332024+363%1970
American CrowCorvidae322024+60%1969
Yellow WarblerParulidae312024+500%1969
Red-winged BlackbirdIcteridae292024-31%1969
Mourning DoveColumbidae282024+181%1969
Cedar WaxwingBombycillidae282024+487%1971
Pine WarblerParulidae28202418×1972
Purple MartinHirundinidae252024+620%1988
Song SparrowPasserellidae242024-13%1969
OvenbirdParulidae202024+216%1969
American Black DuckAnatidae201981+164%1970
Brown-headed CowbirdIcteridae192024+135%1969
Common GrackleIcteridae182024-38%1969
American RedstartParulidae172024+246%1974
Northern House WrenTroglodytidae162024+25%1969
House FinchFringillidae132024+150%1980
Red-bellied WoodpeckerPicidae132024+240%2010
Downy WoodpeckerPicidae112024+533%1969
Eastern PhoebeTyrannidae112024+183%1969
Barn SwallowHirundinidae112024+77%1969
Tree SwallowHirundinidae112024+35%1969
White-breasted NuthatchSittidae112024+189%1972
Black-capped ChickadeeParidae112024+36%1969
Great Crested FlycatcherTyrannidae102024+233%1971
Eastern TowheePasserellidae92024-77%1970
Baltimore OrioleIcteridae82024-14%1969
House SparrowPasseridae82024-72%1970
Red-eyed VireoVireonidae72024-46%1972
Chimney SwiftApodidae62024-33%1970
Ruby-throated HummingbirdTrochilidae62024+333%1981
VeeryTurdidae62024+129%1969
Fish CrowCorvidae62024+200%1998
Northern BobwhiteOdontophoridae51996-81%1969

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