BirdAnalyst
BBS Route · Illinois · BCR 22

Monticello Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 93 species recorded across 48 survey years, still active.

93Species 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 →
48Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1976–2025Span
5Observers

Bird Species Found on Illinois Monticello

Top 40 of 93 species by most recent count. Each links to its species trend.

Species recorded on the Monticello 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 BlackbirdIcteridae1352025+69%1978
European StarlingSturnidae1202025-5%1978
Common GrackleIcteridae1152025+200%1978
American RobinTurdidae912025+430%1978
Brown-headed CowbirdIcteridae76202536×1978
Barn SwallowHirundinidae432025+29%1978
Mourning DoveColumbidae402025+122%1978
House SparrowPasseridae392025-69%1978
DickcisselCardinalidae38202520×1978
Cliff SwallowHirundinidae352025+530%2006
KilldeerCharadriidae302025+944%1980
Horned LarkAlaudidae272025+20%1978
American CrowCorvidae222025+117%1978
Indigo BuntingCardinalidae212025+838%1978
Northern CardinalCardinalidae202025+49%1978
Chipping SparrowPasserellidae192025+700%1982
Eastern MeadowlarkIcteridae172025+331%1981
Ring-necked PheasantPhasianidae162025-36%1978
Song SparrowPasserellidae162025+161%1978
Northern House WrenTroglodytidae162025+733%1981
Vesper SparrowPasserellidae132025+860%1978
House FinchFringillidae92025+333%1992
Canada GooseAnatidae82019+144%2000
Upland SandpiperScolopacidae82025+450%2011
American GoldfinchFringillidae72025+69%1978
Eastern KingbirdTyrannidae62025+180%1987
Common YellowthroatParulidae52025-7%1981
Cedar WaxwingBombycillidae52025+200%2001
Gray CatbirdMimidae42025+300%1978
Rock PigeonColumbidae42025+15%1979
Tufted TitmouseParidae42025+33%1989
MallardAnatidae42021+60%1989
Blue GrosbeakCardinalidae42025+160%2007
Chimney SwiftApodidae32025-25%1979
Eastern Wood-PeweeTyrannidae32025+40%1986
Sedge WrenTroglodytidae32007+200%2006
Eurasian Collared-DoveColumbidae32025+150%2009
Spotted SandpiperScolopacidae32009n/an/a
Northern BobwhiteOdontophoridae22016-64%1978
BobolinkIcteridae22017-20%1980

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