BirdAnalyst
BBS Route · New Jersey · BCR 28

Bloomsbury Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 52 survey years, still active.

103Species 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 →
52Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2025Span
5Observers

Bird Species Found on New Jersey Bloomsbury

Top 40 of 103 species by most recent count. Each links to its species trend.

Species recorded on the Bloomsbury 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
Gray CatbirdMimidae702025+490%1973
American RobinTurdidae532025-24%1973
European StarlingSturnidae492025-70%1973
Song SparrowPasserellidae472025+7%1973
Bank SwallowHirundinidae401992+44%1977
Chimney SwiftApodidae362025+142%1973
House SparrowPasseridae312025-39%1975
Common GrackleIcteridae292025-89%1973
Chipping SparrowPasserellidae192025+108%1973
Baltimore OrioleIcteridae172025-19%1973
Red-bellied WoodpeckerPicidae15202514×1983
Northern CardinalCardinalidae152025+86%1973
Canada GooseAnatidae132025+124%1994
American CrowCorvidae122025-70%1973
American GoldfinchFringillidae112025+10%1975
Northern House WrenTroglodytidae112025+52%1973
House FinchFringillidae112025+129%1977
Carolina WrenTroglodytidae92025+767%1978
Rock PigeonColumbidae82025-89%1973
Mourning DoveColumbidae82025-59%1973
Red-winged BlackbirdIcteridae82025-77%1973
Yellow WarblerParulidae82025+440%1975
Eastern Wood-PeweeTyrannidae72025+188%1975
Indigo BuntingCardinalidae72025-23%1973
Warbling VireoVireonidae72025+93%1973
Blue JayCorvidae62025+16%1973
Red-eyed VireoVireonidae62025-43%1973
American RedstartParulidae62025+333%1978
Tufted TitmouseParidae62025+243%1973
MallardAnatidae52025+13%1973
Wood ThrushTurdidae52025+47%1973
Cedar WaxwingBombycillidae42025+350%1978
Brown-headed CowbirdIcteridae32025-65%1973
Grasshopper SparrowPasserellidae31991+100%1973
Field SparrowPasserellidae32024+0%1973
Tree SwallowHirundinidae32016+80%1976
White-breasted NuthatchSittidae32025+100%1977
Black-capped ChickadeeParidae32025+100%1976
Double-crested CormorantPhalacrocoracidae32018+125%2003
Eastern PhoebeTyrannidae22025-22%1976

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