BirdAnalyst
BBS Route · Illinois · BCR 22

Bradbury Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 102 species recorded across 54 survey years, still active.

102Species 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 →
54Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–2024Span
6Observers

Bird Species Found on Illinois Bradbury

Top 40 of 102 species by most recent count. Each links to its species trend.

Species recorded on the Bradbury 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 BlackbirdIcteridae2102024-55%1972
House SparrowPasseridae672024-86%1972
Mourning DoveColumbidae552024-35%1972
Horned LarkAlaudidae552024+140%1972
Northern CardinalCardinalidae422024+29%1972
Song SparrowPasserellidae412024-51%1972
DickcisselCardinalidae402024-8%1972
Common YellowthroatParulidae332024+16%1972
Brown-headed CowbirdIcteridae322024+57%1972
European StarlingSturnidae312024-52%1972
Indigo BuntingCardinalidae312024-57%1972
KilldeerCharadriidae312024+658%1974
Barn SwallowHirundinidae302024-20%1972
American RobinTurdidae302024+3%1972
Turkey VultureCathartidae30202425×1989
Tufted TitmouseParidae232024+339%1973
Common GrackleIcteridae212024-91%1972
Purple MartinHirundinidae192024+206%1973
Northern BobwhiteOdontophoridae182024-54%1972
Eastern MeadowlarkIcteridae172024-84%1972
Canada GooseAnatidae162024+75%1996
American CrowCorvidae152024+77%1972
Eastern Wood-PeweeTyrannidae142024+218%1972
Carolina WrenTroglodytidae142024+150%1973
Northern House WrenTroglodytidae122024+150%1972
Field SparrowPasserellidae112024+180%1972
Yellow-breasted ChatIcteriidae112024+67%1972
Chipping SparrowPasserellidae102024+84%1973
Carolina ChickadeeParidae102024+88%1976
Ring-necked PheasantPhasianidae102024+600%1978
Rose-breasted GrosbeakCardinalidae102024+71%1976
White-breasted NuthatchSittidae92024+200%1989
Blue GrosbeakCardinalidae92024+186%2008
Eastern BluebirdTurdidae72024-21%1972
Red-bellied WoodpeckerPicidae62024+67%1973
Eastern PhoebeTyrannidae62024+90%1973
American GoldfinchFringillidae62024-44%1972
Gray CatbirdMimidae62024+20%1972
Great Crested FlycatcherTyrannidae62024+343%1974
Warbling VireoVireonidae6202414×1975

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