BirdAnalyst
BBS Route · New Jersey · BCR 28

Bloomsbury Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 51 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 →
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 →
1969–2024Span
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
European StarlingSturnidae572024-75%1973
Gray CatbirdMimidae512024+393%1973
House SparrowPasseridae502024-33%1975
Canada GooseAnatidae482024+133%1994
American RobinTurdidae452024-20%1973
Bank SwallowHirundinidae401992+44%1977
Chimney SwiftApodidae382024+149%1973
Common GrackleIcteridae372024-88%1973
Song SparrowPasserellidae302024-7%1973
Northern House WrenTroglodytidae212024+67%1973
Chipping SparrowPasserellidae182024+100%1973
Northern CardinalCardinalidae152024+104%1973
Red-bellied WoodpeckerPicidae14202415×1983
Warbling VireoVireonidae132024+107%1973
Mourning DoveColumbidae122024-54%1973
Brown-headed CowbirdIcteridae112024-53%1973
Baltimore OrioleIcteridae112024-21%1973
Indigo BuntingCardinalidae112024-21%1973
House FinchFringillidae112024+165%1977
Carolina WrenTroglodytidae112024+600%1978
Tufted TitmouseParidae92024+257%1973
Eastern Wood-PeweeTyrannidae82024+213%1975
Blue JayCorvidae82024+26%1973
American GoldfinchFringillidae82024+17%1975
Wood ThrushTurdidae82024+47%1973
American CrowCorvidae72024-66%1973
Yellow WarblerParulidae62024+360%1975
Red-winged BlackbirdIcteridae52024-81%1973
American RedstartParulidae52024+233%1978
Great Crested FlycatcherTyrannidae42024+120%1973
White-breasted NuthatchSittidae42024+75%1977
Cedar WaxwingBombycillidae42024+500%1978
Red-tailed HawkAccipitridae42024+80%1987
Grasshopper SparrowPasserellidae31991+100%1973
Field SparrowPasserellidae32024+0%1973
Tree SwallowHirundinidae32016+80%1976
Northern Rough-winged SwallowHirundinidae32024+200%1975
Red-eyed VireoVireonidae32024-57%1973
Fish CrowCorvidae32024+225%1985
Blue-gray GnatcatcherPolioptilidae32023+200%1982

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