BirdAnalyst
BBS Route · New Hampshire · BCR 14

Gilmantn I W Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 111 species recorded across 55 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 →
55Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2024Span
4Observers

Bird Species Found on New Hampshire Gilmantn I W

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

Species recorded on the Gilmantn I W 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 VireoVireonidae402024+20%1971
American CrowCorvidae182024+32%1971
Chipping SparrowPasserellidae172024+77%1971
Common YellowthroatParulidae152024-59%1971
Chestnut-sided WarblerParulidae142024-70%1971
American RobinTurdidae142024-45%1971
Black-capped ChickadeeParidae132024+117%1971
American GoldfinchFringillidae122024+100%1971
Mourning DoveColumbidae112024+300%1971
Gray CatbirdMimidae112024+59%1971
Tufted TitmouseParidae102024+363%1991
Northern CardinalCardinalidae102024+400%1993
Chimney SwiftApodidae92024-68%1971
Barn SwallowHirundinidae92024-41%1971
Eastern PhoebeTyrannidae82024-25%1971
Song SparrowPasserellidae82024-43%1971
OvenbirdParulidae82024-64%1971
White-breasted NuthatchSittidae82024+400%1972
Pine WarblerParulidae72024+433%1986
Brown-headed CowbirdIcteridae62024-13%1971
Red-breasted NuthatchSittidae62021+167%1971
Indigo BuntingCardinalidae62024+11%1976
Purple MartinHirundinidae61990+50%1989
Blue JayCorvidae52024-50%1971
Northern House WrenTroglodytidae52024+113%1971
Wood ThrushTurdidae52024-86%1971
VeeryTurdidae52024-76%1971
Barred OwlStrigidae52024+200%1994
Eastern BluebirdTurdidae42024+67%1988
Canada GooseAnatidae42019-18%2011
Hairy WoodpeckerPicidae32024+50%1971
Red-winged BlackbirdIcteridae32024-38%1971
Scarlet TanagerCardinalidae32024-63%1971
Downy WoodpeckerPicidae32023+0%1975
Cliff SwallowHirundinidae31974+50%1971
Blue-headed VireoVireonidae32024+125%1982
Brown CreeperCerthiidae32024+25%1984
Rock PigeonColumbidae32022+14%2011
Common RavenCorvidae32024+67%1998
Eastern KingbirdTyrannidae22024-71%1971

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