BirdAnalyst
BBS Route · Maine · BCR 14

Cornville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 99 species recorded across 7 survey years, still active.

99Species 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 →
7Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2012–2025Span
2Observers

Bird Species Found on Maine Cornville

Top 40 of 99 species by most recent count. Each links to its species trend.

Species recorded on the Cornville 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
Rock PigeonColumbidae722025+258%2021
European StarlingSturnidae582025-25%2021
American RobinTurdidae502025-3%2021
Red-eyed VireoVireonidae402025+65%2021
Song SparrowPasserellidae392025+51%2021
American CrowCorvidae322025-24%2021
Common YellowthroatParulidae302025+33%2021
American GoldfinchFringillidae252025-9%2021
Mourning DoveColumbidae242025-6%2021
Red-winged BlackbirdIcteridae242025+22%2021
Chipping SparrowPasserellidae242025+30%2021
Cedar WaxwingBombycillidae212025+118%2022
Black-capped ChickadeeParidae212025+51%2021
Chestnut-sided WarblerParulidae202025+15%2021
Yellow WarblerParulidae162025+223%2021
Gray CatbirdMimidae152025+29%2021
Northern CardinalCardinalidae142025+215%2021
BobolinkIcteridae132025+7%2021
OvenbirdParulidae132025-38%2021
American RedstartParulidae132025+70%2021
Eastern PhoebeTyrannidae122025+5%2021
Pine WarblerParulidae112025+47%2022
Northern House WrenTroglodytidae112025+33%2023
Common GrackleIcteridae102025-2%2021
Savannah SparrowPasserellidae102025+150%2021
Cliff SwallowHirundinidae102019n/an/a
Blue JayCorvidae92025-43%2021
Canada GooseAnatidae92024+13%2019
House SparrowPasseridae72025+107%2021
Yellow-bellied SapsuckerPicidae72025-32%2022
Alder FlycatcherTyrannidae62025-21%2021
Warbling VireoVireonidae62025+43%2021
Tree SwallowHirundinidae52025-52%2021
Eastern KingbirdTyrannidae52025+86%2022
Hairy WoodpeckerPicidae42025+100%2021
Bank SwallowHirundinidae42012n/an/a
Hermit ThrushTurdidae42025+14%2021
MallardAnatidae42025-17%2022
Eastern Wood-PeweeTyrannidae42025-20%2022
Common RavenCorvidae42025-39%2022

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