BirdAnalyst
BBS Route · Connecticut · BCR 30

Granby Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 109 species recorded across 24 survey years, still active.

109Species 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 →
24Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2024Span
4Observers

Bird Species Found on Connecticut Granby

Top 40 of 109 species by most recent count. Each links to its species trend.

Species recorded on the Granby 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 StarlingSturnidae412024-31%1990
Red-eyed VireoVireonidae292024+37%1990
Tufted TitmouseParidae252024+82%1990
Song SparrowPasserellidae232024+14%1990
American RobinTurdidae222024-8%1990
Northern House WrenTroglodytidae202024+46%1990
American GoldfinchFringillidae182024+177%1990
Gray CatbirdMimidae182024-1%1990
Mourning DoveColumbidae172024-4%1990
House SparrowPasseridae172024-35%1990
Chipping SparrowPasserellidae152024+26%1990
Northern CardinalCardinalidae152024+81%1990
OvenbirdParulidae142024+9%1990
Red-winged BlackbirdIcteridae132024-59%1990
VeeryTurdidae132024-24%1990
Scarlet TanagerCardinalidae122024+27%1990
Bank SwallowHirundinidae122014+19%1991
Eastern PhoebeTyrannidae112024+48%1990
Common GrackleIcteridae112024-35%1990
American RedstartParulidae112024-16%1990
Black-capped ChickadeeParidae112024+7%1990
Canada GooseAnatidae92022+333%1993
Wood ThrushTurdidae92024-44%1990
Red-tailed HawkAccipitridae92024+114%2013
Carolina WrenTroglodytidae92024+733%1995
American CrowCorvidae82024-51%1990
Barn SwallowHirundinidae82024-4%1990
Black-and-white WarblerParulidae82024+15%1990
Yellow WarblerParulidae82024-28%1990
Common YellowthroatParulidae82024-29%1990
Red-bellied WoodpeckerPicidae82024+633%1995
Chimney SwiftApodidae72024-4%1990
Blue JayCorvidae72024-57%1990
Chestnut-sided WarblerParulidae72024-4%1990
White-breasted NuthatchSittidae62024-9%1991
Yellow-bellied SapsuckerPicidae52024+325%1991
Warbling VireoVireonidae52024+175%1991
Pine WarblerParulidae52024+217%2012
Willow FlycatcherTyrannidae42024-25%1990
Brown-headed CowbirdIcteridae42024-27%1990

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