BirdAnalyst
BBS Route · Ohio · BCR 13

Middlefield Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 119 species recorded across 47 survey years, no longer active.

119Species 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 →
47Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2017Span
2Observers

Bird Species Found on Ohio Middlefield

Top 40 of 119 species by most recent count. Each links to its species trend.

Species recorded on the Middlefield 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-winged BlackbirdIcteridae802017-48%1969
European StarlingSturnidae622017-51%1969
House SparrowPasseridae492017-44%1969
American RobinTurdidae482017-15%1969
Song SparrowPasserellidae342017+5%1969
Canada GooseAnatidae302017+531%1971
Mourning DoveColumbidae272017+47%1969
Northern CardinalCardinalidae222017+26%1969
Common GrackleIcteridae182017-63%1969
American CrowCorvidae172017-16%1969
Chipping SparrowPasserellidae172017+136%1969
Common TernLaridae151975n/an/a
Double-crested CormorantPhalacrocoracidae151996n/an/a
Yellow WarblerParulidae132017-37%1969
Tufted TitmouseParidae122017-7%1969
Barn SwallowHirundinidae112016-70%1969
Eastern PhoebeTyrannidae102017+40%1969
House FinchFringillidae102017+144%1986
Common YellowthroatParulidae92017-52%1969
Chimney SwiftApodidae82017-46%1969
Blue JayCorvidae72017+22%1969
Brown-headed CowbirdIcteridae72017-67%1969
Cedar WaxwingBombycillidae62017-5%1970
Northern House WrenTroglodytidae62017+8%1969
Black-capped ChickadeeParidae62017+92%1969
Gray CatbirdMimidae52017-30%1969
Wood ThrushTurdidae52017-63%1969
Purple FinchFringillidae51995-10%1973
Great Crested FlycatcherTyrannidae42017-17%1969
Northern Rough-winged SwallowHirundinidae42013+20%1969
Warbling VireoVireonidae42017-42%1969
Eastern BluebirdTurdidae42017+50%1972
Hooded WarblerParulidae42016+167%1987
KilldeerCharadriidae32017+114%1969
Downy WoodpeckerPicidae32017-10%1969
Red-bellied WoodpeckerPicidae32016+29%1969
Baltimore OrioleIcteridae32017-74%1969
Indigo BuntingCardinalidae32017+0%1969
Scarlet TanagerCardinalidae32016+40%1970
Great Blue HeronArdeidae32017+40%1971

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