BirdAnalyst
BBS Route · Illinois · BCR 22

Concord West Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 91 species recorded across 22 survey years, still active.

91Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2001–2025Span
3Observers

Bird Species Found on Illinois Concord West

Top 40 of 91 species by most recent count. Each links to its species trend.

Species recorded on the Concord West 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 BlackbirdIcteridae962025-40%2003
DickcisselCardinalidae622025+142%2003
American RobinTurdidae482025-28%2003
Mourning DoveColumbidae302025-6%2003
Eastern MeadowlarkIcteridae272025-31%2003
House SparrowPasseridae252025-64%2003
KilldeerCharadriidae242025+55%2003
Rock PigeonColumbidae192016-17%2005
Northern BobwhiteOdontophoridae182025-9%2003
Barn SwallowHirundinidae162025-50%2003
Red-bellied WoodpeckerPicidae152025+9%2003
Indigo BuntingCardinalidae142025-31%2003
Common GrackleIcteridae132025-87%2003
Northern CardinalCardinalidae132025-7%2003
BobolinkIcteridae12200712×2004
Brown-headed CowbirdIcteridae112025-29%2003
Common YellowthroatParulidae102025+8%2003
Chipping SparrowPasserellidae92025-22%2003
Song SparrowPasserellidae92025-57%2003
Northern House WrenTroglodytidae82025+0%2003
Chimney SwiftApodidae72025-14%2003
Eastern BluebirdTurdidae72017-50%2003
Gray CatbirdMimidae62025+75%2003
Blue JayCorvidae52025+6%2003
American CrowCorvidae52025-63%2003
American GoldfinchFringillidae52025+38%2004
Eastern Wood-PeweeTyrannidae42025+111%2003
European StarlingSturnidae42025-89%2003
Belted KingfisherAlcedinidae42017+300%2002
Wild TurkeyPhasianidae32025+20%2003
Red-tailed HawkAccipitridae32025-40%2003
Red-headed WoodpeckerPicidae32025+11%2003
Warbling VireoVireonidae32025-10%2003
Yellow WarblerParulidae32025+40%2003
Northern MockingbirdMimidae32025-57%2003
Downy WoodpeckerPicidae32023-33%2005
Eastern TowheePasserellidae32023+75%2011
MallardAnatidae22019-14%2004
Eastern PhoebeTyrannidae22025+0%2003
Grasshopper SparrowPasserellidae22007+0%2002

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.