BirdAnalyst
BBS Route · Massachusetts · BCR 30

N Oxford Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 102 species recorded across 29 survey years, still active.

102Species 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 →
29Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
6Observers

Bird Species Found on Massachusetts N Oxford

Top 40 of 102 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 RobinTurdidae542025-59%1970
Gray CatbirdMimidae332025-20%1970
Chipping SparrowPasserellidae242025-45%1970
Northern CardinalCardinalidae24202517×1972
House SparrowPasseridae232025-55%1970
European StarlingSturnidae222025-83%1970
Song SparrowPasserellidae212025-67%1970
American GoldfinchFringillidae172025+33%1970
Mourning DoveColumbidae152025+179%1970
Tufted TitmouseParidae122025+490%1972
Red-bellied WoodpeckerPicidae122025+144%2007
Downy WoodpeckerPicidae112025+50%1970
American CrowCorvidae112025+0%1970
Red-winged BlackbirdIcteridae112025-89%1970
Common GrackleIcteridae112025-78%1970
Chimney SwiftApodidae102025-80%1970
Brown-headed CowbirdIcteridae102025-29%1970
Northern House WrenTroglodytidae92025-53%1970
Black-capped ChickadeeParidae92025-78%1970
Blue JayCorvidae82025-81%1970
Baltimore OrioleIcteridae82025-68%1970
Rose-breasted GrosbeakCardinalidae72025-41%1970
White-breasted NuthatchSittidae72025+75%1970
Wood ThrushTurdidae72024-74%1970
House FinchFringillidae62025-81%1995
Eastern BluebirdTurdidae62025+575%2004
Pine WarblerParulidae62025-36%2007
Eastern PhoebeTyrannidae52025-25%1970
Field SparrowPasserellidae51974+63%1970
OvenbirdParulidae52025-46%1970
Common YellowthroatParulidae52025-88%1970
VeeryTurdidae52025-29%1970
American WoodcockScolopacidae51973+400%1969
Carolina WrenTroglodytidae52025-14%2004
Eastern TowheePasserellidae42025-94%1970
Scarlet TanagerCardinalidae42025-68%1970
Tree SwallowHirundinidae42024-70%1970
Yellow WarblerParulidae42025-53%1970
Eastern Wood-PeweeTyrannidae42025-14%1972
Rock PigeonColumbidae32024-68%1970

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.