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 56 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 →
56Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2025Span
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 VireoVireonidae432025+30%1971
American CrowCorvidae232025+43%1971
Black-capped ChickadeeParidae232025+108%1971
Tufted TitmouseParidae182025+425%1991
European StarlingSturnidae162025-55%1971
Chipping SparrowPasserellidae152025+69%1971
American GoldfinchFringillidae142025+117%1971
Common YellowthroatParulidae132025-50%1971
American RobinTurdidae122025-42%1971
Northern CardinalCardinalidae122025+500%1993
Wild TurkeyPhasianidae122025+367%2003
Mourning DoveColumbidae112025+400%1971
Song SparrowPasserellidae112025-45%1971
OvenbirdParulidae112025-61%1971
Gray CatbirdMimidae112025+46%1971
Eastern PhoebeTyrannidae92025-19%1971
Barn SwallowHirundinidae92024-41%1971
Chestnut-sided WarblerParulidae82025-64%1971
Yellow-bellied SapsuckerPicidae82025+433%1974
Chimney SwiftApodidae72025-66%1971
Indigo BuntingCardinalidae72025+56%1976
Pine WarblerParulidae72025+500%1986
Blue JayCorvidae62025-33%1971
Brown-headed CowbirdIcteridae62024-13%1971
Northern House WrenTroglodytidae62025+125%1971
Red-breasted NuthatchSittidae62021+167%1971
Purple MartinHirundinidae61990+50%1989
MallardAnatidae62025+13%1995
Wood ThrushTurdidae52024-86%1971
House FinchFringillidae52025+60%1988
Barred OwlStrigidae52024+200%1994
Cedar WaxwingBombycillidae42025-40%1974
Canada GooseAnatidae42019-18%2011
Red-bellied WoodpeckerPicidae42025+40%2019
BobolinkIcteridae32025-88%1971
Red-winged BlackbirdIcteridae32025-44%1971
Yellow WarblerParulidae32025+20%1971
VeeryTurdidae32025-83%1971
Cliff SwallowHirundinidae31974+50%1971
Blue-headed VireoVireonidae32024+125%1982

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