BirdAnalyst
BBS Route · Illinois · BCR 22

Geneseo Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 114 species recorded across 47 survey years, still active.

114Species 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 →
1967–2021Span
6Observers

Bird Species Found on Illinois Geneseo

Top 40 of 114 species by most recent count. Each links to its species trend.

Species recorded on the Geneseo 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 BlackbirdIcteridae2592021-39%1969
House SparrowPasseridae952021-90%1969
Common GrackleIcteridae522021-84%1969
Cliff SwallowHirundinidae522021+373%1990
DickcisselCardinalidae402021-56%1969
American RobinTurdidae402021+34%1969
Mourning DoveColumbidae332021-42%1969
Canada GooseAnatidae242018+925%1989
Song SparrowPasserellidae222021+61%1969
Northern CardinalCardinalidae202021-5%1969
Barn SwallowHirundinidae172021+105%1969
Tree SwallowHirundinidae152018+81%1972
Chipping SparrowPasserellidae14202112×1976
KilldeerCharadriidae122021+600%1970
Gray CatbirdMimidae122021+75%1969
Northern House WrenTroglodytidae112021-74%1969
Blue JayCorvidae102021-56%1969
Turkey VultureCathartidae102017+300%2000
American CrowCorvidae92021-36%1969
Brown-headed CowbirdIcteridae92021+21%1969
Rock PigeonColumbidae62021-19%1969
Field SparrowPasserellidae62021-62%1969
Black-capped ChickadeeParidae62021+17%1970
Cedar WaxwingBombycillidae62018+82%1980
Ring-billed GullLaridae61998n/an/a
American GoldfinchFringillidae52021-75%1969
Indigo BuntingCardinalidae52021-65%1969
Northern Rough-winged SwallowHirundinidae52000+400%1974
White-breasted NuthatchSittidae42017+60%1971
MallardAnatidae42018-63%1973
Yellow-throated VireoVireonidae42000+233%1979
Black TernLaridae41973n/an/a
Savannah SparrowPasserellidae42021-53%1981
Black-billed CuckooCuculidae32013-44%1979
Downy WoodpeckerPicidae32021+140%1969
Red-headed WoodpeckerPicidae32021-78%1969
Western MeadowlarkIcteridae32017-83%1969
Bank SwallowHirundinidae32021-94%1972
Warbling VireoVireonidae32021-36%1969
Wood DuckAnatidae32018+120%1975

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