BirdAnalyst
BBS Route · New Hampshire · BCR 14

Fitzwilliam Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 133 species recorded across 58 survey years, still active.

133Species 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 →
58Years 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
4Observers

Bird Species Found on New Hampshire Fitzwilliam

Top 40 of 133 species by most recent count. Each links to its species trend.

Species recorded on the Fitzwilliam 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 VireoVireonidae632024+203%1968
American RobinTurdidae342024-46%1968
European StarlingSturnidae322024-72%1968
Common YellowthroatParulidae252024+50%1968
Chipping SparrowPasserellidae232024+100%1968
Red-winged BlackbirdIcteridae222024-69%1968
Song SparrowPasserellidae222024+49%1968
Mourning DoveColumbidae212024+439%1968
Barn SwallowHirundinidae212024-63%1968
American GoldfinchFringillidae202024+97%1968
OvenbirdParulidae202024+3%1968
American CrowCorvidae182024+8%1968
House SparrowPasseridae172024-41%1968
Black-capped ChickadeeParidae172024-3%1968
Pine WarblerParulidae172024+500%1973
Cedar WaxwingBombycillidae162024+107%1968
Northern CardinalCardinalidae16202417×1974
Eastern PhoebeTyrannidae152024+116%1968
Tufted TitmouseParidae152024+590%1990
Canada GooseAnatidae142023+46%1995
Gray CatbirdMimidae122024+54%1968
Northern House WrenTroglodytidae122024+60%1968
Yellow WarblerParulidae112024+240%1968
Chestnut-sided WarblerParulidae102024+44%1968
Black-and-white WarblerParulidae92024+12%1968
Eastern BluebirdTurdidae92024+133%1970
Chimney SwiftApodidae82022-65%1968
American RedstartParulidae72024+31%1968
Blue JayCorvidae62024-48%1968
Scarlet TanagerCardinalidae52024+56%1968
Tree SwallowHirundinidae52024-11%1968
Indigo BuntingCardinalidae52024+180%1970
Carolina WrenTroglodytidae52024+100%2015
Eastern Wood-PeweeTyrannidae42024+11%1968
Eastern MeadowlarkIcteridae41999-48%1968
Black-throated Green WarblerParulidae42024-42%1970
White-breasted NuthatchSittidae42024+143%1969
Hairy WoodpeckerPicidae42024+38%1970
American Black DuckAnatidae31995+50%1969
Rock PigeonColumbidae32024-33%1968

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