BirdAnalyst
BBS Route · Vermont · BCR 13

Colchester Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 112 species recorded across 39 survey years, still active.

112Species 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 →
39Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1986–2025Span
2Observers

Bird Species Found on Vermont Colchester

Top 40 of 112 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 BlackbirdIcteridae502025-49%1988
American RobinTurdidae402025-40%1988
American CrowCorvidae262025+21%1988
European StarlingSturnidae232025-57%1988
Barn SwallowHirundinidae212025+4%1988
Northern CardinalCardinalidae192025+275%1988
Mourning DoveColumbidae162025-2%1988
American GoldfinchFringillidae132025+40%1988
Northern MockingbirdMimidae132001+78%1988
Red-eyed VireoVireonidae112025-19%1988
Ring-billed GullLaridae102025+26%1988
Wild TurkeyPhasianidae102017+900%2006
Yellow WarblerParulidae92025-76%1988
Common YellowthroatParulidae92025-66%1988
Blue JayCorvidae72025-41%1988
Song SparrowPasserellidae72025-56%1988
BobolinkIcteridae52025-77%1988
Tree SwallowHirundinidae52025-79%1988
Gray CatbirdMimidae52025+88%1989
Common MerganserAnatidae52018+400%2013
Northern Rough-winged SwallowHirundinidae52022n/an/a
Chipping SparrowPasserellidae42025-68%1988
Cedar WaxwingBombycillidae42025-86%1988
Chestnut-sided WarblerParulidae42025-13%1988
Northern House WrenTroglodytidae32024-56%1988
Black-throated Blue WarblerParulidae31991+200%1990
Hairy WoodpeckerPicidae32022+50%1993
Common RavenCorvidae32024-14%1995
Field SparrowPasserellidae31995+200%1994
Chimney SwiftApodidae22014+13%1993
Brown-headed CowbirdIcteridae22021-55%1988
Common GrackleIcteridae22025-78%1988
House SparrowPasseridae22024-86%1988
Wood ThrushTurdidae22025-61%1988
VeeryTurdidae22024-46%1988
Winter WrenTroglodytidae22003+50%1992
Red-breasted NuthatchSittidae21990+100%1987
Grasshopper SparrowPasserellidae22006-25%1993
White-breasted NuthatchSittidae22025-36%1994
Cliff SwallowHirundinidae21998+0%1991

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