BirdAnalyst
BBS Route · New Jersey · BCR 29

Croton 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 81 species recorded across 16 survey years, still active.

81Species 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 →
16Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2008–2024Span
1Observers

Bird Species Found on New Jersey Croton 2

Top 40 of 81 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 RobinTurdidae1082024+53%2010
Red-winged BlackbirdIcteridae822024+167%2010
European StarlingSturnidae772024+32%2010
American CrowCorvidae612024-42%2010
Gray CatbirdMimidae592024+14%2010
Song SparrowPasserellidae532024-10%2010
Blue JayCorvidae462024+113%2010
American GoldfinchFringillidae452024+110%2010
Mourning DoveColumbidae392024+38%2010
Northern House WrenTroglodytidae392024+20%2010
House SparrowPasseridae352024+127%2010
Carolina WrenTroglodytidae312024+76%2010
Common GrackleIcteridae302024+5%2010
Northern CardinalCardinalidae262024+11%2010
Chipping SparrowPasserellidae212024-35%2010
Canada GooseAnatidae162023+31%2013
House FinchFringillidae152024+21%2010
Brown-headed CowbirdIcteridae132024-22%2010
Northern MockingbirdMimidae132024-51%2010
Red-bellied WoodpeckerPicidae112024+49%2010
Common YellowthroatParulidae112024+25%2010
Wood ThrushTurdidae102024-38%2010
Turkey VultureCathartidae102024+14%2011
Tufted TitmouseParidae92024-20%2010
Eastern BluebirdTurdidae72024+29%2010
Rock PigeonColumbidae62022-48%2010
Field SparrowPasserellidae62024-26%2010
Downy WoodpeckerPicidae52024-8%2010
Eastern PhoebeTyrannidae52024+100%2010
White-breasted NuthatchSittidae42024-38%2010
Black-capped ChickadeeParidae42024-57%2010
Eastern KingbirdTyrannidae42024+57%2011
Barn SwallowHirundinidae32023-65%2010
Yellow WarblerParulidae32023+0%2011
Great Crested FlycatcherTyrannidae32023+150%2013
Black VultureCathartidae32022+0%2015
KilldeerCharadriidae22024+33%2010
Hairy WoodpeckerPicidae22024+150%2011
Chimney SwiftApodidae22024-22%2010
Indigo BuntingCardinalidae22024-67%2010

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