BirdAnalyst
BBS Route · Illinois · BCR 22

Compton Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 85 species recorded across 43 survey years, still active.

85Species 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 →
43Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2019Span
5Observers

Bird Species Found on Illinois Compton

Top 40 of 85 species by most recent count. Each links to its species trend.

Species recorded on the Compton 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 BlackbirdIcteridae932019-70%1973
American RobinTurdidae422019+40%1973
Common GrackleIcteridae392019-51%1973
Barn SwallowHirundinidae332019+61%1973
House SparrowPasseridae322019-90%1973
Song SparrowPasserellidae202019+0%1973
European StarlingSturnidae182019-66%1973
Mourning DoveColumbidae162019+62%1973
Brown-headed CowbirdIcteridae152019-9%1975
Canada GooseAnatidae92018+0%2001
KilldeerCharadriidae82019+533%1973
Blue JayCorvidae82019+40%1973
Vesper SparrowPasserellidae72018+70%1973
Northern House WrenTroglodytidae72019+256%1973
Northern CardinalCardinalidae72019+125%1975
Common YellowthroatParulidae52018-52%1973
Northern Rough-winged SwallowHirundinidae52016+67%1989
Eastern MeadowlarkIcteridae42018-89%1973
Cedar WaxwingBombycillidae42017+17%1994
Chimney SwiftApodidae32018-11%1973
American CrowCorvidae32019-68%1973
Indigo BuntingCardinalidae32018+50%1973
Brown ThrasherMimidae32019-40%1973
Chipping SparrowPasserellidae32019+540%1975
Black-billed CuckooCuculidae31973n/an/a
Eastern BluebirdTurdidae32015+200%1973
Bank SwallowHirundinidae31989n/an/a
House FinchFringillidae32019+0%1992
Eastern PhoebeTyrannidae32017+25%2008
Rock PigeonColumbidae22019-90%1973
Red-headed WoodpeckerPicidae22016-33%1978
Horned LarkAlaudidae22018-95%1973
American GoldfinchFringillidae22018-74%1973
Blue-winged TealAnatidae21972n/an/a
Northern HarrierAccipitridae21972n/an/a
Loggerhead ShrikeLaniidae21982+100%1972
Great Crested FlycatcherTyrannidae22017+25%1984
Cliff SwallowHirundinidae22018-33%1975
Rose-breasted GrosbeakCardinalidae22017+33%1991
Great Horned OwlStrigidae22006+50%1999

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