BirdAnalyst
BBS Route · Illinois · BCR 22

Concord Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 105 species recorded across 55 survey years, still active.

105Species 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 →
55Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2025Span
4Observers

Bird Species Found on Illinois Concord

Top 40 of 105 species by most recent count. Each links to its species trend.

Species recorded on the Concord 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
American RobinTurdidae1092025+233%1969
Red-winged BlackbirdIcteridae792025+37%1969
Mourning DoveColumbidae582025+120%1969
Cliff SwallowHirundinidae552025+97%2021
European StarlingSturnidae422025+12%1969
Indigo BuntingCardinalidae392025+124%1969
House SparrowPasseridae382025-86%1969
Northern CardinalCardinalidae372025+75%1969
Canada GooseAnatidae302018-46%2001
DickcisselCardinalidae272025-32%1969
Barn SwallowHirundinidae272025+49%1969
KilldeerCharadriidae25202517×1969
Red-headed WoodpeckerPicidae252025+71%1969
Brown-headed CowbirdIcteridae232025+147%1969
Song SparrowPasserellidae232025+100%1969
Common GrackleIcteridae212025-69%1969
Eastern MeadowlarkIcteridae192025-44%1969
Northern House WrenTroglodytidae192025+155%1969
Red-bellied WoodpeckerPicidae172025+410%1970
Common YellowthroatParulidae172025+206%1969
Eastern Wood-PeweeTyrannidae152025+246%1969
Eurasian Tree SparrowPasseridae142023-41%1969
Northern BobwhiteOdontophoridae132025-59%1969
Turkey VultureCathartidae13202517×1986
Warbling VireoVireonidae132025+79%1969
Gray CatbirdMimidae132025+246%1969
Chimney SwiftApodidae122025-73%1969
Blue JayCorvidae122025+19%1969
Chipping SparrowPasserellidae12202513×1971
American CrowCorvidae112025-54%1969
Eastern KingbirdTyrannidae92025+73%1969
Rose-breasted GrosbeakCardinalidae72025+38%1973
Purple MartinHirundinidae72025+23%1969
Tufted TitmouseParidae72025+100%1969
Horned LarkAlaudidae62025-75%1969
Rock PigeonColumbidae62025-76%1972
Bank SwallowHirundinidae61987n/an/a
Northern MockingbirdMimidae52025-27%1969
Brown ThrasherMimidae52025-66%1969
Carolina WrenTroglodytidae52025+56%1969

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