BirdAnalyst
BBS Route · Maine · BCR 14

Hancock Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 137 species recorded across 32 survey years, still active.

137Species 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 →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2025Span
7Observers

Bird Species Found on Maine Hancock

Top 40 of 137 species by most recent count. Each links to its species trend.

Species recorded on the Hancock 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
American CrowCorvidae412025+22%1971
Red-eyed VireoVireonidae322025+60%1971
OvenbirdParulidae242025+118%1971
American RobinTurdidae232025-64%1971
Mourning DoveColumbidae172025+250%1971
European StarlingSturnidae142025-81%1971
Song SparrowPasserellidae142025-42%1971
Blue JayCorvidae132025-37%1971
Chipping SparrowPasserellidae132025-16%1971
Common YellowthroatParulidae132025+733%1971
Red-winged BlackbirdIcteridae112025-74%1971
Eastern PhoebeTyrannidae92025+189%1972
BobolinkIcteridae92025-63%1971
Gray CatbirdMimidae82025-37%1971
Black-capped ChickadeeParidae82025+36%1972
Northern ParulaParulidae72025+350%1971
American Black DuckAnatidae71998-18%1992
Northern CardinalCardinalidae72025+650%1999
Alder FlycatcherTyrannidae62025-11%1974
Black-throated Green WarblerParulidae62025+186%1972
Canada GooseAnatidae62025-20%2000
Bonaparte's GullLaridae61986n/an/a
Tufted TitmouseParidae62025+233%2011
KilldeerCharadriidae51995+100%1972
Chimney SwiftApodidae52025-29%1971
American GoldfinchFringillidae52025+11%1971
Cedar WaxwingBombycillidae52025+156%1971
Yellow WarblerParulidae52025-50%1971
Hermit ThrushTurdidae52025-42%1971
Pine SiskinFringillidae52012-48%1987
Wild TurkeyPhasianidae52025+150%2009
Barn SwallowHirundinidae41997-80%1971
Black-and-white WarblerParulidae42025+44%1974
Magnolia WarblerParulidae42025+25%1976
Chestnut-sided WarblerParulidae42025-38%1971
Hairy WoodpeckerPicidae42025+133%1974
Rock PigeonColumbidae42025+522%1977
Bay-breasted WarblerParulidae42000+100%1995
Broad-winged HawkAccipitridae42025+100%1990
Herring GullLaridae32025-85%1971

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