BirdAnalyst
BBS Route · New Hampshire · BCR 14

Jefferson Hl Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 137 species recorded across 56 survey years, still active.

137Species 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 →
1966–2024Span
9Observers

Bird Species Found on New Hampshire Jefferson Hl

Top 40 of 137 species by most recent count. Each links to its species trend.

Species recorded on the Jefferson Hl 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 VireoVireonidae522024+47%1968
American CrowCorvidae322024+124%1968
American RobinTurdidae292024+6%1968
OvenbirdParulidae262024+30%1968
Chestnut-sided WarblerParulidae212024+28%1968
Chipping SparrowPasserellidae182024+82%1968
Song SparrowPasserellidae172024+4%1968
American RedstartParulidae162024-30%1968
Black-capped ChickadeeParidae152024+105%1968
Common YellowthroatParulidae142024-42%1968
Canada GooseAnatidae142024+171%2003
Hermit ThrushTurdidae122024+120%1968
Yellow-bellied SapsuckerPicidae112024+18%1968
Blue-headed VireoVireonidae112024+414%1968
Eastern PhoebeTyrannidae102024+107%1968
Mourning DoveColumbidae102024+567%1974
Rock PigeonColumbidae102024+560%1977
Red CrossbillFringillidae92015+350%1977
Winter WrenTroglodytidae82024+50%1969
VeeryTurdidae72024-76%1968
Great Blue HeronArdeidae71995+333%1989
Tree SwallowHirundinidae62024-81%1968
Red-breasted NuthatchSittidae62024+140%1969
Red-winged BlackbirdIcteridae52024-69%1968
American GoldfinchFringillidae52024-75%1968
Indigo BuntingCardinalidae52024+275%1968
Northern ParulaParulidae52024+533%1969
Wilson's WarblerParulidae51966n/an/a
Pileated WoodpeckerPicidae52024+200%1972
Downy WoodpeckerPicidae42024+60%1968
Chimney SwiftApodidae42023+25%1969
Alder FlycatcherTyrannidae42024-42%1968
Blue JayCorvidae42024+24%1968
Black-and-white WarblerParulidae42024+125%1968
Black-throated Green WarblerParulidae42024+333%1968
Gray CatbirdMimidae42024-48%1968
Great Crested FlycatcherTyrannidae32024+33%1968
Least FlycatcherTyrannidae32024-66%1968
BobolinkIcteridae32022+100%1968
Common GrackleIcteridae32024-31%1968

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