BirdAnalyst
BBS Route · Illinois · BCR 22

Beaucoup Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 107 species recorded across 50 survey years, still active.

107Species 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 →
50Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2024Span
6Observers

Bird Species Found on Illinois Beaucoup

Top 40 of 107 species by most recent count. Each links to its species trend.

Species recorded on the Beaucoup 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 BlackbirdIcteridae4322024-21%1973
House SparrowPasseridae1702024-67%1973
DickcisselCardinalidae1192024+48%1973
European StarlingSturnidae1182024+290%1973
Common GrackleIcteridae542024-60%1973
American RobinTurdidae502024+93%1973
Mourning DoveColumbidae492024+85%1973
Barn SwallowHirundinidae412024+7%1973
Horned LarkAlaudidae312024+27%1973
Chimney SwiftApodidae312024-5%1974
KilldeerCharadriidae262024+279%1973
Song SparrowPasserellidae252024-6%1973
Indigo BuntingCardinalidae242024-2%1973
American CrowCorvidae232024+400%1973
Canada GooseAnatidae232024+41%2002
Eastern MeadowlarkIcteridae212024-80%1973
Northern CardinalCardinalidae182024+18%1973
Cliff SwallowHirundinidae16202421×2004
Common YellowthroatParulidae132024+18%1973
Northern BobwhiteOdontophoridae122024+3%1973
House FinchFringillidae112024+67%1994
Eurasian Collared-DoveColumbidae112024+58%2006
Gray CatbirdMimidae102024+183%1973
Red-bellied WoodpeckerPicidae92024+400%1974
Cedar WaxwingBombycillidae92022-39%1997
Northern House WrenTroglodytidae72024+340%1973
Chipping SparrowPasserellidae62024+233%1991
Northern MockingbirdMimidae62024+46%1973
Blue GrosbeakCardinalidae62024+475%2005
Yellow-breasted ChatIcteriidae52024+100%1973
Blue-gray GnatcatcherPolioptilidae52024+120%1982
Great Blue HeronArdeidae52024+86%1993
American GoldfinchFringillidae42024+8%1973
Field SparrowPasserellidae42024-72%1973
Eastern TowheePasserellidae42024+0%1977
Purple MartinHirundinidae42024-11%1973
Downy WoodpeckerPicidae42024+167%1974
OspreyPandionidae42024+300%2022
Great Crested FlycatcherTyrannidae32024+100%1973
Eastern PhoebeTyrannidae32024+17%1973

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