BirdAnalyst
BBS Route · Vermont · BCR 14

Post Mills Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 127 species recorded across 47 survey years, still active.

127Species 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 →
47Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2024Span
7Observers

Bird Species Found on Vermont Post Mills

Top 40 of 127 species by most recent count. Each links to its species trend.

Species recorded on the Post Mills 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 VireoVireonidae562024+123%1969
Canada GooseAnatidae402024+109%2004
Song SparrowPasserellidae222024-51%1969
American CrowCorvidae212024-15%1969
Tufted TitmouseParidae21202414×1992
Black-capped ChickadeeParidae172024+67%1969
American RobinTurdidae142024-75%1969
Red-winged BlackbirdIcteridae132024-77%1969
Common YellowthroatParulidae132024-41%1969
Eastern PhoebeTyrannidae112024-40%1969
American GoldfinchFringillidae112024-55%1969
Chestnut-sided WarblerParulidae102024+169%1969
Blue JayCorvidae92024-57%1969
OvenbirdParulidae92024+12%1969
Northern House WrenTroglodytidae92024+115%1969
VeeryTurdidae82024-55%1969
Gray CatbirdMimidae72024-22%1969
Yellow-bellied SapsuckerPicidae62024+320%1975
Barn SwallowHirundinidae62024-75%1969
Black-and-white WarblerParulidae62024-13%1969
Yellow WarblerParulidae52024-64%1969
White-breasted NuthatchSittidae52024-44%1969
American Black DuckAnatidae41999-29%1991
Chimney SwiftApodidae42022-90%1976
Great Crested FlycatcherTyrannidae42024-20%1969
Chipping SparrowPasserellidae42024-82%1969
Indigo BuntingCardinalidae42024+22%1969
Scarlet TanagerCardinalidae42024-56%1969
Alder FlycatcherTyrannidae42024+150%1977
Rock PigeonColumbidae42023+314%1978
Wild TurkeyPhasianidae42024+267%2001
Hooded MerganserAnatidae42024+100%2021
BobolinkIcteridae32024-44%1969
Magnolia WarblerParulidae31994-60%1976
Pine WarblerParulidae32024+56%1975
Common RavenCorvidae32024+75%1981
Downy WoodpeckerPicidae22024-43%1975
Eastern KingbirdTyrannidae22024-75%1969
Eastern Wood-PeweeTyrannidae22024-50%1969
Least FlycatcherTyrannidae22022-89%1969

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