BirdAnalyst
BBS Route · Illinois · BCR 22

Marshall Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 19 survey years, still active.

95Species 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 →
2001–2024Span
2Observers

Bird Species Found on Illinois Marshall

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Marshall 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 BlackbirdIcteridae1822024+108%2003
House SparrowPasseridae1172024+367%2003
European StarlingSturnidae1032024+96%2003
American RobinTurdidae862024+199%2003
Horned LarkAlaudidae592024+441%2003
Mourning DoveColumbidae552024+121%2003
Common GrackleIcteridae492024-41%2003
KilldeerCharadriidae432024+327%2003
Indigo BuntingCardinalidae362024+235%2003
Northern CardinalCardinalidae342024+429%2003
Barn SwallowHirundinidae342024+94%2003
Brown-headed CowbirdIcteridae332024+846%2004
American CrowCorvidae322024+633%2003
Song SparrowPasserellidae30202423×2004
Common YellowthroatParulidae282024+567%2003
Eastern MeadowlarkIcteridae252024+77%2003
Northern BobwhiteOdontophoridae232024+88%2003
Cedar WaxwingBombycillidae222023+322%2012
Tufted TitmouseParidae212024+462%2011
DickcisselCardinalidae192024+780%2006
Eastern Wood-PeweeTyrannidae15202411×2006
Eastern BluebirdTurdidae152024+291%2003
Chipping SparrowPasserellidae142024+254%2003
Baltimore OrioleIcteridae122024+111%2010
Rock PigeonColumbidae122023-44%2010
Field SparrowPasserellidae112024+543%2003
Blue GrosbeakCardinalidae112024+92%2018
Cliff SwallowHirundinidae102024+296%2004
Northern House WrenTroglodytidae92024+44%2006
Great Crested FlycatcherTyrannidae82024+18%2010
Wild TurkeyPhasianidae82024+75%2012
Carolina WrenTroglodytidae82024+57%2010
Purple MartinHirundinidae82024+263%2017
Red-headed WoodpeckerPicidae72024+800%2003
American GoldfinchFringillidae72024+10%2003
Gray CatbirdMimidae72024+83%2010
Eastern TowheePasserellidae72024-4%2012
Canada GooseAnatidae72022-83%2016
Brown ThrasherMimidae62024+133%2003
Northern MockingbirdMimidae62024+150%2006

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