BirdAnalyst
BBS Route · Vermont · BCR 14

Northfld Fls Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 109 species recorded across 32 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 →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1980–2025Span
4Observers

Bird Species Found on Vermont Northfld Fls

Top 40 of 109 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 VireoVireonidae872025+4%1987
American RobinTurdidae452025-21%1987
Red-winged BlackbirdIcteridae392025-62%1987
Black-capped ChickadeeParidae392025+50%1987
OvenbirdParulidae362025+110%1987
Song SparrowPasserellidae342025+35%1987
Chestnut-sided WarblerParulidae292025+37%1987
Common YellowthroatParulidae282025-1%1987
Blue JayCorvidae242025+43%1987
Cedar WaxwingBombycillidae222025-32%1987
American CrowCorvidae192025-27%1987
Cliff SwallowHirundinidae191980n/an/a
European StarlingSturnidae162021-65%1987
Yellow-bellied SapsuckerPicidae142025+300%1987
American GoldfinchFringillidae142025-39%1987
Winter WrenTroglodytidae142025+217%1989
Mourning DoveColumbidae102025+108%1987
Chipping SparrowPasserellidae102025+15%1988
Indigo BuntingCardinalidae102025+70%1990
Barn SwallowHirundinidae102025-61%1987
Willow FlycatcherTyrannidae101997+140%1990
Red-breasted NuthatchSittidae92025+60%1988
Blackburnian WarblerParulidae82025+27%1994
Ruby-throated HummingbirdTrochilidae72025-10%1988
Black-throated Green WarblerParulidae72025+89%1987
Gray CatbirdMimidae72025+80%1987
Hermit ThrushTurdidae72025+167%1989
White-throated SparrowPasserellidae62025-53%1987
White-breasted NuthatchSittidae62025+300%1987
Chimney SwiftApodidae62013+50%1993
Common RavenCorvidae52025-13%1988
Black-throated Blue WarblerParulidae52025-17%1989
Eastern PhoebeTyrannidae42025-39%1987
Savannah SparrowPasserellidae42025+18%1988
Tree SwallowHirundinidae42025-82%1987
Bank SwallowHirundinidae41991+300%1980
Hairy WoodpeckerPicidae42025+80%1988
Brown CreeperCerthiidae42025+33%1988
Northern ParulaParulidae42025+0%2002
Pileated WoodpeckerPicidae32025-38%1987

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