BirdAnalyst
BBS Route · Maine · BCR 14

Topsfield Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 92 species recorded across 6 survey years, still active.

92Species 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 →
6Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1978–1996Span
3Observers

Bird Species Found on Maine Topsfield

Top 40 of 92 species by most recent count. Each links to its species trend.

Species recorded on the Topsfield 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 VireoVireonidae421996+103%1990
Bank SwallowHirundinidae391978n/an/a
American RobinTurdidae251996+35%1990
Cedar WaxwingBombycillidae231996+22%1990
Black-capped ChickadeeParidae231996+47%1990
OvenbirdParulidae181996-3%1990
Common YellowthroatParulidae181996+44%1990
Northern ParulaParulidae171996+5%1990
Chipping SparrowPasserellidae161996+31%1990
American CrowCorvidae151996+152%1990
Nashville WarblerParulidae151996+41%1979
Barn SwallowHirundinidae141996-35%1990
White-throated SparrowPasserellidae131996+23%1990
Black-and-white WarblerParulidae121996+36%1990
Hermit ThrushTurdidae121996+76%1990
Mourning DoveColumbidae12199612×1990
Black-throated Green WarblerParulidae111996+61%1990
Golden-crowned KingletRegulidae111996+150%1990
American GoldfinchFringillidae101996+44%1990
Song SparrowPasserellidae91996+28%1990
Blue-headed VireoVireonidae91996-17%1990
Blue JayCorvidae81996+45%1990
Magnolia WarblerParulidae81996-35%1990
Chestnut-sided WarblerParulidae81996+125%1990
Brown-headed CowbirdIcteridae71996+20%1990
Winter WrenTroglodytidae71996+88%1990
VeeryTurdidae71996-40%1990
Black-throated Blue WarblerParulidae61996+220%1979
Canada WarblerParulidae61992+167%1990
Common NighthawkCaprimulgidae61992+500%1990
Savannah SparrowPasserellidae61996+500%1991
American RedstartParulidae51996-24%1990
Purple FinchFringillidae41996-36%1990
Tree SwallowHirundinidae41996+33%1990
White-breasted NuthatchSittidae41992+300%1990
White-winged CrossbillFringillidae41991n/an/a
Downy WoodpeckerPicidae31996+50%1978
Common RavenCorvidae31996+15%1990
European StarlingSturnidae31996+33%1990
Red-winged BlackbirdIcteridae31996-75%1979

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