BirdAnalyst
BBS Route · New Jersey · BCR 30

Greenwich Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 111 species recorded across 51 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 →
51Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
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 StarlingSturnidae822025-35%1968
Northern CardinalCardinalidae322025+93%1968
Turkey VultureCathartidae302024+57%1968
Mourning DoveColumbidae292025-17%1968
Carolina WrenTroglodytidae232025+455%1971
American RobinTurdidae222025-58%1968
House SparrowPasseridae202025-79%1968
American CrowCorvidae182025+51%1968
Common GrackleIcteridae162025-88%1968
Chipping SparrowPasserellidae152025+17%1968
Northern MockingbirdMimidae132025-70%1968
Red-bellied WoodpeckerPicidae102025+580%1968
Canada GooseAnatidae102025+84%1992
Barn SwallowHirundinidae92025-59%1968
Red-winged BlackbirdIcteridae82025-59%1968
Chimney SwiftApodidae72025-41%1968
Blue JayCorvidae72025-48%1968
Red-eyed VireoVireonidae72025-50%1968
Wood ThrushTurdidae72025+27%1968
Gray CatbirdMimidae62025-73%1968
Great Crested FlycatcherTyrannidae52025+33%1968
Indigo BuntingCardinalidae52025-36%1968
OvenbirdParulidae52025+100%1969
Tufted TitmouseParidae52025-57%1968
Downy WoodpeckerPicidae42023+60%1968
Eastern Wood-PeweeTyrannidae42025+125%1972
Brown-headed CowbirdIcteridae32024-10%1969
American GoldfinchFringillidae32025+14%1968
Eastern TowheePasserellidae32024-84%1968
Purple MartinHirundinidae32025-86%1968
Brown ThrasherMimidae32025-69%1968
Carolina ChickadeeParidae32025+20%1969
Bank SwallowHirundinidae32007+200%1993
Hairy WoodpeckerPicidae32023+0%1997
House FinchFringillidae32025-82%1990
Eastern BluebirdTurdidae32025+250%2000
Worm-eating WarblerParulidae32013+200%1994
Double-crested CormorantPhalacrocoracidae32025+0%2013
KilldeerCharadriidae22025-33%1968
Rock PigeonColumbidae22023-80%1968

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