BirdAnalyst
BBS Route · Maine · BCR 14

Otisfield Gr Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 133 species recorded across 45 survey years, still active.

133Species 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 →
45Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2015Span
6Observers

Bird Species Found on Maine Otisfield Gr

Top 40 of 133 species by most recent count. Each links to its species trend.

Species recorded on the Otisfield Gr 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 VireoVireonidae70201515×1972
American CrowCorvidae442015+521%1972
American GoldfinchFringillidae292015+68%1972
American RobinTurdidae282015-20%1972
Red-winged BlackbirdIcteridae232015-6%1972
Chipping SparrowPasserellidae182015+132%1972
Song SparrowPasserellidae182015+32%1972
Common YellowthroatParulidae172015-4%1973
Common GrackleIcteridae162015-76%1972
Blue JayCorvidae152015-18%1972
Cliff SwallowHirundinidae151993-61%1972
VeeryTurdidae152015+64%1973
Mourning DoveColumbidae152015+205%1976
Eastern PhoebeTyrannidae142015+156%1972
BobolinkIcteridae142015+81%1972
Chimney SwiftApodidae132015-73%1972
Tree SwallowHirundinidae112015-71%1972
Gray CatbirdMimidae112015-2%1972
Black-capped ChickadeeParidae112015+391%1972
Chestnut-sided WarblerParulidae112015+108%1973
OvenbirdParulidae112015+167%1973
Warbling VireoVireonidae112015+75%1979
American RedstartParulidae92015+33%1972
Brown-headed CowbirdIcteridae82015-44%1972
Barn SwallowHirundinidae72015-63%1972
Wood ThrushTurdidae72015-73%1973
Savannah SparrowPasserellidae72014+300%1979
European StarlingSturnidae62015-87%1972
Yellow WarblerParulidae62015+60%1972
House SparrowPasseridae62015-61%1972
Northern CardinalCardinalidae62015+225%1986
Cedar WaxwingBombycillidae52015-12%1972
Bank SwallowHirundinidae52010-95%1973
Purple MartinHirundinidae51989+400%1977
Canada GooseAnatidae52015-58%1997
Rose-breasted GrosbeakCardinalidae42015+33%1980
Pine WarblerParulidae42015+70%1980
Northern MockingbirdMimidae32008+567%1982
Baltimore OrioleIcteridae32015+8%1973
White-breasted NuthatchSittidae32015+260%1975

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