BirdAnalyst
BBS Route · New Jersey · BCR 30

Greenwich Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 111 species recorded across 50 survey years, still active.

111Species 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 →
50Years 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
7Observers

Bird Species Found on New Jersey Greenwich

Top 40 of 111 species by most recent count. Each links to its species trend.

Species recorded on the Greenwich 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 StarlingSturnidae1202024-36%1968
Common GrackleIcteridae542024-88%1968
Mourning DoveColumbidae302024-26%1968
Turkey VultureCathartidae302024+57%1968
American RobinTurdidae242024-49%1968
Chimney SwiftApodidae192024-41%1968
Barn SwallowHirundinidae192024-57%1968
Chipping SparrowPasserellidae182024+36%1968
Carolina WrenTroglodytidae182024+482%1971
American CrowCorvidae172024+73%1968
Blue JayCorvidae142024-45%1968
Northern CardinalCardinalidae142024+54%1968
House SparrowPasseridae122024-83%1968
Red-bellied WoodpeckerPicidae102024+520%1968
Indigo BuntingCardinalidae92024-46%1968
Canada GooseAnatidae92024+88%1992
Eastern BluebirdTurdidae92024+225%2000
Northern MockingbirdMimidae82024-76%1968
Wood ThrushTurdidae72024-13%1968
Great Crested FlycatcherTyrannidae62024+13%1968
Red-winged BlackbirdIcteridae62024-56%1968
Red-eyed VireoVireonidae62024-67%1968
Downy WoodpeckerPicidae42023+60%1968
Field SparrowPasserellidae42024-50%1968
Red-tailed HawkAccipitridae42024+133%1993
Wild TurkeyPhasianidae42023+0%1997
Eastern Wood-PeweeTyrannidae32024+75%1972
Fish CrowCorvidae32024-24%1968
Brown-headed CowbirdIcteridae32024-10%1969
American GoldfinchFringillidae32023-14%1968
Eastern TowheePasserellidae32024-84%1968
Gray CatbirdMimidae32024-77%1968
Northern House WrenTroglodytidae32024-67%1968
Bank SwallowHirundinidae32007+200%1993
Hairy WoodpeckerPicidae32023+0%1997
Worm-eating WarblerParulidae32013+200%1994
Wood DuckAnatidae22024+0%1969
Rock PigeonColumbidae22023-80%1968
Horned LarkAlaudidae22013-29%1968
Baltimore OrioleIcteridae22018-60%1968

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