BirdAnalyst
BBS Route · West Virginia · BCR 28

Rio Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 22 survey years, no longer active.

100Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1974–1995Span
2Observers

Bird Species Found on West Virginia Rio

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Rio 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 CrowCorvidae481995+91%1976
Indigo BuntingCardinalidae381995+2%1976
Chipping SparrowPasserellidae371995-8%1976
Tufted TitmouseParidae271995+64%1976
American RobinTurdidae211995-34%1976
American GoldfinchFringillidae201995-46%1976
Red-winged BlackbirdIcteridae191995-38%1976
European StarlingSturnidae171995-39%1976
Northern CardinalCardinalidae171995+20%1976
Song SparrowPasserellidae161995+7%1976
Barn SwallowHirundinidae161995-56%1976
Red-eyed VireoVireonidae161995+68%1976
Gray CatbirdMimidae161995+7%1976
Black-capped ChickadeeParidae161995+217%1976
Eastern PhoebeTyrannidae151995+0%1976
House SparrowPasseridae131995-38%1976
Eastern TowheePasserellidae121995-38%1976
Scarlet TanagerCardinalidae121995+150%1976
Field SparrowPasserellidae111995-43%1976
Common RavenCorvidae111994+317%1977
Common GrackleIcteridae101995-70%1976
Cedar WaxwingBombycillidae101995-38%1976
Eastern Wood-PeweeTyrannidae91995-11%1976
White-breasted NuthatchSittidae91994+58%1977
Pileated WoodpeckerPicidae81995+54%1978
Great Crested FlycatcherTyrannidae81995+67%1976
Blue-gray GnatcatcherPolioptilidae81995+0%1976
Blue JayCorvidae71995+90%1976
Brown-headed CowbirdIcteridae71995-41%1976
Baltimore OrioleIcteridae71995+18%1976
Louisiana WaterthrushParulidae71995+44%1977
Acadian FlycatcherTyrannidae61995+46%1976
Eastern MeadowlarkIcteridae61995-33%1976
Turkey VultureCathartidae51994-44%1976
Yellow-billed CuckooCuculidae51995+400%1977
Northern MockingbirdMimidae51995+75%1976
Downy WoodpeckerPicidae41995-18%1976
Red-bellied WoodpeckerPicidae41995+30%1977
Chimney SwiftApodidae41995-29%1976
Eastern KingbirdTyrannidae41995-58%1976

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