BirdAnalyst
BBS Route · Massachusetts · BCR 14

Chesterfield Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 128 species recorded across 53 survey years, still active.

128Species 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 →
53Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2024Span
4Observers

Bird Species Found on Massachusetts Chesterfield

Top 40 of 128 species by most recent count. Each links to its species trend.

Species recorded on the Chesterfield 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 VireoVireonidae1382024+519%1969
American RobinTurdidae712024+79%1969
OvenbirdParulidae702024+295%1969
Chipping SparrowPasserellidae522024+160%1969
American CrowCorvidae482024+102%1969
Black-capped ChickadeeParidae482024+166%1969
Common YellowthroatParulidae362024+113%1969
Yellow-bellied SapsuckerPicidae342024+115%1970
Yellow WarblerParulidae33202413×1969
Song SparrowPasserellidae322024+26%1969
European StarlingSturnidae312024-59%1969
Black-and-white WarblerParulidae282024+157%1969
American RedstartParulidae262024+74%1969
BobolinkIcteridae232024+331%1969
Canada GooseAnatidae232024+67%1995
Eastern PhoebeTyrannidae222024+100%1969
American GoldfinchFringillidae222024+79%1969
Cedar WaxwingBombycillidae202024+243%1969
VeeryTurdidae202024-5%1969
Chestnut-sided WarblerParulidae192024+16%1969
Mourning DoveColumbidae18202420×1970
Red-winged BlackbirdIcteridae182024-17%1969
Gray CatbirdMimidae182024+8%1969
Pine SiskinFringillidae171988-43%1973
Common GrackleIcteridae162024+122%1969
Northern CardinalCardinalidae162024+850%1973
Tree SwallowHirundinidae152024+295%1970
Blue JayCorvidae142024+39%1969
Barn SwallowHirundinidae132024-35%1969
Indigo BuntingCardinalidae132024+725%1971
Tufted TitmouseParidae132024+450%1993
Black-throated Green WarblerParulidae122024+164%1970
Common RavenCorvidae122024+93%1995
Eastern Wood-PeweeTyrannidae82024+15%1971
Alder FlycatcherTyrannidae82024+300%1970
Red-breasted NuthatchSittidae82024+140%1973
Blackburnian WarblerParulidae72024+517%1970
Pine WarblerParulidae72024+300%2008
Least FlycatcherTyrannidae62024-51%1969
Northern House WrenTroglodytidae62024+150%1969

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