BirdAnalyst
BBS Route · Vermont · BCR 13

Colchester Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 111 species recorded across 38 survey years, still active.

111Species 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 →
38Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1986–2024Span
2Observers

Bird Species Found on Vermont Colchester

Top 40 of 111 species by most recent count. Each links to its species trend.

Species recorded on the Colchester 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
Red-winged BlackbirdIcteridae372024-49%1988
American CrowCorvidae342024+46%1988
American RobinTurdidae252024-35%1988
Barn SwallowHirundinidae232024-15%1988
Northern CardinalCardinalidae142024+250%1988
American GoldfinchFringillidae132024+32%1988
Northern MockingbirdMimidae132001+78%1988
European StarlingSturnidae112024-65%1988
Song SparrowPasserellidae112024-49%1988
Canada GooseAnatidae112022+173%2000
Wild TurkeyPhasianidae102017+900%2006
Mourning DoveColumbidae92024-4%1988
Common GrackleIcteridae82024-72%1988
Ring-billed GullLaridae72024+19%1988
Blue JayCorvidae62024-53%1988
Tufted TitmouseParidae62024+240%1999
Red-eyed VireoVireonidae52024-22%1988
Black-capped ChickadeeParidae52024-73%1988
Common MerganserAnatidae52018+400%2013
Northern Rough-winged SwallowHirundinidae52022n/an/a
BobolinkIcteridae42024-68%1988
Common YellowthroatParulidae42024-75%1988
Chipping SparrowPasserellidae32024-79%1988
Tree SwallowHirundinidae32024-76%1988
Gray CatbirdMimidae32024+113%1989
Northern House WrenTroglodytidae32024-56%1988
Black-throated Blue WarblerParulidae31991+200%1990
White-breasted NuthatchSittidae32021-46%1994
Hairy WoodpeckerPicidae32022+50%1993
Common RavenCorvidae32024-14%1995
Field SparrowPasserellidae31995+200%1994
Chimney SwiftApodidae22014+13%1993
Brown-headed CowbirdIcteridae22021-55%1988
Yellow WarblerParulidae22024-83%1988
House SparrowPasseridae22024-86%1988
VeeryTurdidae22024-46%1988
Winter WrenTroglodytidae22003+50%1992
Red-breasted NuthatchSittidae21990+100%1987
Grasshopper SparrowPasserellidae22006-25%1993
Cliff SwallowHirundinidae21998+0%1991

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