BirdAnalyst
BBS Route · Illinois · BCR 22

Yorkville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 75 species recorded across 19 survey years, still active.

75Species 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 →
19Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2001–2019Span
1Observers

Bird Species Found on Illinois Yorkville

Top 40 of 75 species by most recent count. Each links to its species trend.

Species recorded on the Yorkville 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
MallardAnatidae1202018+563%2003
Red-winged BlackbirdIcteridae712019-24%2003
American RobinTurdidae682019+1%2003
KilldeerCharadriidae342019+38%2003
House SparrowPasseridae312019-51%2003
Common GrackleIcteridae302019-25%2003
European StarlingSturnidae212019-76%2003
Song SparrowPasserellidae182019-37%2003
Mourning DoveColumbidae132019-47%2003
Canada GooseAnatidae112018-72%2003
Horned LarkAlaudidae102019-74%2003
Ring-billed GullLaridae82019-24%2003
Double-crested CormorantPhalacrocoracidae82019-31%2003
Chipping SparrowPasserellidae72019-69%2003
Northern House WrenTroglodytidae62019+42%2003
Eurasian Collared-DoveColumbidae52018-18%2006
Tree SwallowHirundinidae52010+400%2009
Great EgretArdeidae42018-33%2003
Chimney SwiftApodidae32017-66%2003
Eastern Wood-PeweeTyrannidae32018+60%2003
Brown-headed CowbirdIcteridae32019-26%2003
Northern CardinalCardinalidae32019-37%2003
Barn SwallowHirundinidae32019-34%2003
Rock PigeonColumbidae22016-85%2005
American KestrelFalconidae22017-33%2003
American CrowCorvidae22019-81%2003
Eastern MeadowlarkIcteridae22019-65%2003
Vesper SparrowPasserellidae22019-50%2003
Indigo BuntingCardinalidae22018-38%2003
Yellow WarblerParulidae22018-17%2003
Black-capped ChickadeeParidae22018-44%2003
Ring-necked PheasantPhasianidae22016-75%2004
Western MeadowlarkIcteridae22018-14%2004
Baltimore OrioleIcteridae22017+0%2006
DickcisselCardinalidae22018+86%2007
Hairy WoodpeckerPicidae22008n/an/a
Great Blue HeronArdeidae12018-73%2003
Red-tailed HawkAccipitridae12017-50%2004
Downy WoodpeckerPicidae12018+25%2003
Eastern KingbirdTyrannidae12017-62%2003

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