BirdAnalyst
BBS Route · Vermont · BCR 14

Northfld Fls Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 108 species recorded across 31 survey years, still active.

108Species 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1980–2021Span
3Observers

Bird Species Found on Vermont Northfld Fls

Top 40 of 108 species by most recent count. Each links to its species trend.

Species recorded on the Northfld Fls 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-eyed VireoVireonidae332021-27%1987
OvenbirdParulidae332021+114%1987
American RobinTurdidae242021-36%1987
Blue JayCorvidae202021+13%1987
Cliff SwallowHirundinidae191980n/an/a
Song SparrowPasserellidae182021+7%1987
Common YellowthroatParulidae172021-1%1987
European StarlingSturnidae162021-65%1987
Black-capped ChickadeeParidae132021-6%1987
Chestnut-sided WarblerParulidae122021-5%1987
Cedar WaxwingBombycillidae112021-57%1987
Gray CatbirdMimidae112021+53%1987
Willow FlycatcherTyrannidae101997+140%1990
Yellow-bellied SapsuckerPicidae82021+211%1987
American CrowCorvidae82021-44%1987
White-throated SparrowPasserellidae72021-46%1987
Black-throated Green WarblerParulidae72021+33%1987
American RedstartParulidae62021-79%1987
Wood ThrushTurdidae62018-80%1987
VeeryTurdidae62021-64%1987
Chimney SwiftApodidae62013+50%1993
Mourning DoveColumbidae52021+100%1987
Alder FlycatcherTyrannidae52021+0%1988
Blackburnian WarblerParulidae52021-27%1994
White-breasted NuthatchSittidae52021+260%1987
Savannah SparrowPasserellidae42021+36%1988
Bank SwallowHirundinidae41991+300%1980
Black-and-white WarblerParulidae42021+17%1987
Red-breasted NuthatchSittidae42017-10%1988
Downy WoodpeckerPicidae32021-13%1987
Eastern PhoebeTyrannidae32021-54%1987
Red-winged BlackbirdIcteridae32021-88%1987
Common GrackleIcteridae32021-47%1987
American GoldfinchFringillidae32021-68%1987
Chipping SparrowPasserellidae32021-31%1988
Lincoln's SparrowPasserellidae31980n/an/a
Indigo BuntingCardinalidae32021+0%1990
Barn SwallowHirundinidae32021-73%1987
Black-throated Blue WarblerParulidae32021-8%1989
Golden-crowned KingletRegulidae32018-30%2005

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