BirdAnalyst
BBS Route · Illinois · BCR 22

Eldred Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 98 species recorded across 27 survey years, still active.

98Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1993–2021Span
3Observers

Bird Species Found on Illinois Eldred

Top 40 of 98 species by most recent count. Each links to its species trend.

Species recorded on the Eldred 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
Northern Rough-winged SwallowHirundinidae2402021+483%1995
Cliff SwallowHirundinidae1572021+644%2003
Indigo BuntingCardinalidae832021+9%1995
House SparrowPasseridae832021-24%1995
Barn SwallowHirundinidae482021-25%1995
Mourning DoveColumbidae452021-34%1995
DickcisselCardinalidae422021+16%1995
Red-winged BlackbirdIcteridae352021-64%1995
Northern CardinalCardinalidae322021+12%1995
Brown-headed CowbirdIcteridae242021-36%1996
American RobinTurdidae222021-36%1995
KilldeerCharadriidae212021+129%1995
Common YellowthroatParulidae172021+9%1995
Carolina WrenTroglodytidae172019-32%1995
Eastern Wood-PeweeTyrannidae152021+45%1995
Chipping SparrowPasserellidae152021+4%1995
Blue JayCorvidae142021-46%1995
Common GrackleIcteridae132021-89%1995
Northern BobwhiteOdontophoridae122021-22%1995
Warbling VireoVireonidae122021+26%1995
Canada GooseAnatidae122016+4%2002
Wood ThrushTurdidae102021+320%1996
Rock PigeonColumbidae82021+20%1995
Yellow-billed CuckooCuculidae72021-21%1995
Eastern MeadowlarkIcteridae72021-61%1995
Song SparrowPasserellidae72021-41%1995
Tufted TitmouseParidae72021-70%1995
Red-bellied WoodpeckerPicidae62021-67%1995
American GoldfinchFringillidae62021-6%1995
Turkey VultureCathartidae52021+104%1997
European StarlingSturnidae52021-59%1995
Blue GrosbeakCardinalidae52021+275%2005
Eurasian Collared-DoveColumbidae52017n/an/a
Red-tailed HawkAccipitridae42021+29%1995
Red-headed WoodpeckerPicidae42021-11%1995
Purple MartinHirundinidae41993n/an/a
Bank SwallowHirundinidae42021-73%1995
Great EgretArdeidae42004n/an/a
Downy WoodpeckerPicidae32019-53%1995
Chimney SwiftApodidae32021-44%1995

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