BirdAnalyst
BBS Route · New Hampshire · BCR 14

Jefferson Hl Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 137 species recorded across 57 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 →
57Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
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 VireoVireonidae592025+36%1968
American CrowCorvidae322025+143%1968
American RobinTurdidae192025-13%1968
Chestnut-sided WarblerParulidae172025+35%1968
Black-capped ChickadeeParidae162025+100%1968
Chipping SparrowPasserellidae152025+82%1968
Song SparrowPasserellidae142025+11%1968
American RedstartParulidae142025-30%1968
OvenbirdParulidae122025+14%1968
Common YellowthroatParulidae122025-36%1968
Pine WarblerParulidae122025+667%1979
Red CrossbillFringillidae92015+350%1977
Eastern PhoebeTyrannidae82025+80%1968
Alder FlycatcherTyrannidae72025-27%1968
Great Blue HeronArdeidae71995+333%1989
Yellow-bellied SapsuckerPicidae62025+18%1968
Blue JayCorvidae62025+12%1968
American GoldfinchFringillidae62025-77%1968
Rock PigeonColumbidae62025+260%1977
White-throated SparrowPasserellidae52025-87%1968
Indigo BuntingCardinalidae52025+200%1968
Blackburnian WarblerParulidae52025+43%1968
Wilson's WarblerParulidae51966n/an/a
Gray CatbirdMimidae52025-44%1968
Pileated WoodpeckerPicidae52024+200%1972
Downy WoodpeckerPicidae42024+60%1968
Eastern Wood-PeweeTyrannidae42025+0%1968
Red-winged BlackbirdIcteridae42025-78%1968
Northern ParulaParulidae42025+400%1969
Yellow WarblerParulidae42025+60%1974
Winter WrenTroglodytidae42025+50%1969
Hermit ThrushTurdidae42025+80%1968
Red-breasted NuthatchSittidae42025+180%1969
Canada GooseAnatidae42025+171%2003
Great Crested FlycatcherTyrannidae32024+33%1968
BobolinkIcteridae32022+100%1968
Common GrackleIcteridae32025-23%1968
Tree SwallowHirundinidae32025-77%1968
Blue-headed VireoVireonidae32025+243%1968
Black-and-white WarblerParulidae32025+150%1968

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