BirdAnalyst
BBS Route · New Jersey · BCR 29

Croton 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 82 species recorded across 17 survey years, still active.

82Species 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 →
17Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2008–2025Span
1Observers

Bird Species Found on New Jersey Croton 2

Top 40 of 82 species by most recent count. Each links to its species trend.

Species recorded on the Croton 2 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 RobinTurdidae722025+43%2010
Gray CatbirdMimidae612025+13%2010
Song SparrowPasserellidae492025-9%2010
Blue JayCorvidae472025+136%2010
European StarlingSturnidae442025+50%2010
Red-winged BlackbirdIcteridae442025+167%2010
Mourning DoveColumbidae392025+35%2010
Northern CardinalCardinalidae342025+7%2010
Northern House WrenTroglodytidae322025+16%2010
American CrowCorvidae272025-47%2010
Red-bellied WoodpeckerPicidae262025+82%2010
American GoldfinchFringillidae262025+106%2010
Carolina WrenTroglodytidae262025+103%2010
House FinchFringillidae252025+89%2010
Common GrackleIcteridae242025+51%2010
Chipping SparrowPasserellidae222025-38%2010
House SparrowPasseridae192025+93%2010
Tufted TitmouseParidae172025-12%2010
Canada GooseAnatidae162023+31%2013
Northern MockingbirdMimidae142025-41%2010
Field SparrowPasserellidae132025-23%2010
Black-capped ChickadeeParidae132025+0%2010
Wood ThrushTurdidae102025-19%2010
Common YellowthroatParulidae92025+14%2010
Eastern BluebirdTurdidae92025+29%2010
Downy WoodpeckerPicidae82025-17%2010
Chimney SwiftApodidae82025-17%2010
Rock PigeonColumbidae62022-48%2010
Brown-headed CowbirdIcteridae62025-16%2010
Barn SwallowHirundinidae62025-50%2010
Eastern KingbirdTyrannidae62025+129%2011
Turkey VultureCathartidae52025+18%2011
Eastern PhoebeTyrannidae42025+133%2010
Cedar WaxwingBombycillidae42025-61%2010
Northern Rough-winged SwallowHirundinidae32025-46%2011
OvenbirdParulidae32025-27%2010
Yellow WarblerParulidae32025-13%2011
Great Crested FlycatcherTyrannidae32023+150%2013
KilldeerCharadriidae22024+33%2010
Hairy WoodpeckerPicidae22024+150%2011

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