BirdAnalyst
BBS Route · New Jersey · BCR 30

Cranbury Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 93 species recorded across 27 survey years, still active.

93Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1987–2024Span
8Observers

Bird Species Found on New Jersey Cranbury

Top 40 of 93 species by most recent count. Each links to its species trend.

Species recorded on the Cranbury 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 StarlingSturnidae672024-76%1989
American RobinTurdidae662024-55%1989
Gray CatbirdMimidae392024+346%1989
Song SparrowPasserellidae312024+46%1989
Common GrackleIcteridae282024-89%1989
Mourning DoveColumbidae252024-84%1989
Northern MockingbirdMimidae222024-35%1989
Chipping SparrowPasserellidae192024+57%1989
Cedar WaxwingBombycillidae192024+333%1991
Northern House WrenTroglodytidae182024+46%1989
Canada GooseAnatidae172019-37%1996
Blue JayCorvidae122024-17%1989
Northern CardinalCardinalidae122024+31%1989
Red-winged BlackbirdIcteridae102024-76%1989
Herring GullLaridae102015+820%1997
Fish CrowCorvidae10202411×1993
Turkey VultureCathartidae82024+867%2001
Field SparrowPasserellidae72023-41%1995
American CrowCorvidae62024-60%1989
Carolina WrenTroglodytidae62024+267%1994
Barn SwallowHirundinidae52023-76%1989
Chimney SwiftApodidae42024-36%1989
House FinchFringillidae42024-93%1989
House SparrowPasseridae42024-71%1989
Carolina ChickadeeParidae42024-27%1991
KilldeerCharadriidae32022-62%1989
Rock PigeonColumbidae32023-94%1989
Brown-headed CowbirdIcteridae32024+0%1989
American GoldfinchFringillidae32024-38%1989
Common YellowthroatParulidae32024-66%1989
Brown ThrasherMimidae32002+20%1989
Laughing GullLaridae31988n/an/a
Black-capped ChickadeeParidae32013+50%2005
Eastern Wood-PeweeTyrannidae22024+67%1991
Horned LarkAlaudidae21987n/an/a
Scarlet TanagerCardinalidae21988+0%1987
Purple MartinHirundinidae22010-33%1991
Northern Rough-winged SwallowHirundinidae22022+0%1989
Red-eyed VireoVireonidae22023-38%1989
American RedstartParulidae21991-67%1988

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