BirdAnalyst
BBS Route · Connecticut · BCR 30

Westbrook Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 119 species recorded across 37 survey years, still active.

119Species 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 →
37Years 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
10Observers

Bird Species Found on Connecticut Westbrook

Top 40 of 119 species by most recent count. Each links to its species trend.

Species recorded on the Westbrook 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
House SparrowPasseridae692025+156%1972
Red-winged BlackbirdIcteridae392025-52%1972
Barn SwallowHirundinidae332025+150%1972
Gray CatbirdMimidae312025+134%1972
Northern CardinalCardinalidae232025+282%1972
American RobinTurdidae232025-23%1972
Common GrackleIcteridae222025-11%1972
Blue JayCorvidae212025-7%1972
House FinchFringillidae192025+82%1977
Song SparrowPasserellidae162025+87%1972
Carolina WrenTroglodytidae152025+236%1984
Chipping SparrowPasserellidae142025+83%1972
White-breasted NuthatchSittidae132024+343%1974
Mourning DoveColumbidae102025-25%1972
American GoldfinchFringillidae102025+371%1974
Black-capped ChickadeeParidae102025+114%1973
Herring GullLaridae92025+0%1973
Tufted TitmouseParidae92025+617%1972
American Black DuckAnatidae91991+400%1986
American CrowCorvidae82025+94%1972
Northern House WrenTroglodytidae72025+59%1972
Ring-billed GullLaridae72006+167%1992
Rock PigeonColumbidae61994+144%1980
OspreyPandionidae62025+50%2005
Chimney SwiftApodidae52025-39%1972
European StarlingSturnidae52025-82%1972
Red-bellied WoodpeckerPicidae52025+189%1985
Downy WoodpeckerPicidae42025+183%1972
Brown-headed CowbirdIcteridae42025+50%1973
Eastern MeadowlarkIcteridae41998+50%1974
Red-eyed VireoVireonidae42025-6%1972
Fish CrowCorvidae42025+450%1982
Baltimore OrioleIcteridae32024-40%1972
Eastern BluebirdTurdidae32025+120%1975
Rose-breasted GrosbeakCardinalidae32024-44%1974
Tree SwallowHirundinidae32025+300%1974
Northern Rough-winged SwallowHirundinidae32025-25%1983
Marsh WrenTroglodytidae32025+114%1978
Worm-eating WarblerParulidae32024+0%1985
Wild TurkeyPhasianidae32019+200%1998

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