BirdAnalyst
BBS Route · New Hampshire · BCR 14

Fitzwilliam Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 134 species recorded across 59 survey years, still active.

134Species 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 →
59Years 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
4Observers

Bird Species Found on New Hampshire Fitzwilliam

Top 40 of 134 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 VireoVireonidae562025+205%1968
Song SparrowPasserellidae312025+57%1968
European StarlingSturnidae302025-70%1968
Chipping SparrowPasserellidae302025+65%1968
Black-capped ChickadeeParidae292025-3%1968
American RobinTurdidae272025-43%1968
OvenbirdParulidae252025+5%1968
Pine WarblerParulidae232025+533%1973
Tufted TitmouseParidae222025+520%1990
Northern CardinalCardinalidae20202516×1974
Yellow WarblerParulidae192025+360%1968
Mourning DoveColumbidae182025+400%1968
Red-winged BlackbirdIcteridae182025-69%1968
American RedstartParulidae182025+100%1968
Common YellowthroatParulidae162025+30%1968
Gray CatbirdMimidae162025+24%1968
American GoldfinchFringillidae152025+81%1968
Northern House WrenTroglodytidae152025+44%1968
American CrowCorvidae132025-23%1968
Warbling VireoVireonidae132025+260%1972
Eastern PhoebeTyrannidae122025+92%1968
Chestnut-sided WarblerParulidae122025+33%1968
Barn SwallowHirundinidae112025-65%1968
VeeryTurdidae102025-59%1968
Cedar WaxwingBombycillidae92025+120%1968
Black-and-white WarblerParulidae92025+0%1968
Brown-headed CowbirdIcteridae82025-36%1968
Blue JayCorvidae72025-65%1968
Rock PigeonColumbidae62025-20%1968
Scarlet TanagerCardinalidae62025+67%1968
Eastern Wood-PeweeTyrannidae52025+33%1968
Baltimore OrioleIcteridae52025-55%1968
Tree SwallowHirundinidae52025-30%1968
Black-throated Green WarblerParulidae52025-42%1970
Carolina WrenTroglodytidae52025+200%2015
Red-bellied WoodpeckerPicidae52025+33%2015
Eastern MeadowlarkIcteridae41999-48%1968
Common GrackleIcteridae42025-88%1968
Blackburnian WarblerParulidae42025+40%1969
House SparrowPasseridae42025-48%1968

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