BirdAnalyst
BBS Route · Maine · BCR 14

Ludlow Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 108 species recorded across 17 survey years, still active.

108Species 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 →
17Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–1998Span
4Observers

Bird Species Found on Maine Ludlow

Top 40 of 108 species by most recent count. Each links to its species trend.

Species recorded on the Ludlow 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 VireoVireonidae741998+93%1973
American RobinTurdidae471998+2%1973
White-throated SparrowPasserellidae411998+23%1973
American CrowCorvidae341998+113%1973
European StarlingSturnidae321998-11%1973
Cedar WaxwingBombycillidae301998+409%1978
American RedstartParulidae291998+44%1973
Common YellowthroatParulidae271998+75%1973
Song SparrowPasserellidae241998-8%1973
OvenbirdParulidae231998-18%1973
Savannah SparrowPasserellidae201998+13%1973
Winter WrenTroglodytidae201998+80%1973
House SparrowPasseridae171995+29%1973
Black-capped ChickadeeParidae171998+267%1973
VeeryTurdidae171998+0%1973
Alder FlycatcherTyrannidae151998+8%1973
Common RavenCorvidae131998+180%1973
Chipping SparrowPasserellidae131998+0%1973
Hermit ThrushTurdidae121998+0%1973
BobolinkIcteridae111998-24%1973
Magnolia WarblerParulidae101998+37%1979
Wood ThrushTurdidae101998+32%1977
Red-winged BlackbirdIcteridae91998-7%1973
Blue JayCorvidae81998-29%1973
Common GrackleIcteridae81998-16%1973
Purple FinchFringillidae81998-44%1973
Black-throated Blue WarblerParulidae81995+17%1973
Red-breasted NuthatchSittidae81998+200%1974
Mourning DoveColumbidae81998+175%1981
White-winged CrossbillFringillidae81996+700%1986
Cliff SwallowHirundinidae71996-38%1977
Northern ParulaParulidae71998+84%1973
Black-throated Green WarblerParulidae71998+10%1973
Gray CatbirdMimidae71998+67%1973
Swainson's ThrushTurdidae71998-5%1973
Yellow-bellied SapsuckerPicidae61998+109%1973
Evening GrosbeakFringillidae61998-95%1973
Nashville WarblerParulidae61998-54%1978
Yellow WarblerParulidae61998+43%1973
Tree SwallowHirundinidae51998-68%1973

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