BirdAnalyst
BBS Route · Massachusetts · BCR 30

N Oxford Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 28 survey years, still active.

101Species 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 →
28Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2024Span
5Observers

Bird Species Found on Massachusetts N Oxford

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the N Oxford 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 RobinTurdidae802024-49%1970
European StarlingSturnidae762024-78%1970
Gray CatbirdMimidae342024-5%1970
Mourning DoveColumbidae332024+218%1970
Northern CardinalCardinalidae33202420×1972
Tufted TitmouseParidae262024+610%1972
House SparrowPasseridae242024-56%1970
Common GrackleIcteridae222024-72%1970
American CrowCorvidae202024+15%1970
Song SparrowPasserellidae142024-64%1970
Blue JayCorvidae122024-72%1970
Chipping SparrowPasserellidae112024-48%1970
Downy WoodpeckerPicidae92022+30%1970
Eastern BluebirdTurdidae92024+625%2004
Brown-headed CowbirdIcteridae82024-29%1970
Red-eyed VireoVireonidae82024-70%1970
Wood ThrushTurdidae72024-74%1970
Eastern PhoebeTyrannidae62024-15%1970
Baltimore OrioleIcteridae62024-79%1970
Northern House WrenTroglodytidae62024-40%1970
Red-bellied WoodpeckerPicidae62024+78%2007
Field SparrowPasserellidae51974+63%1970
White-breasted NuthatchSittidae52024+88%1970
American WoodcockScolopacidae51973+400%1969
House FinchFringillidae52024-85%1995
Tree SwallowHirundinidae42024-70%1970
OvenbirdParulidae42024-32%1970
Carolina WrenTroglodytidae42024-5%2004
Rock PigeonColumbidae32024-68%1970
Purple FinchFringillidae31979-42%1971
American GoldfinchFringillidae32024+17%1970
Cedar WaxwingBombycillidae32024+9%1971
Northern MockingbirdMimidae32024-48%1994
Ring-billed GullLaridae32011+200%1995
Belted KingfisherAlcedinidae22018+67%1974
Chimney SwiftApodidae22024-75%1970
Eastern KingbirdTyrannidae22024-87%1970
Eastern TowheePasserellidae22024-95%1970
Rose-breasted GrosbeakCardinalidae22024-77%1970
Scarlet TanagerCardinalidae22024-75%1970

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