BirdAnalyst
BBS Route · Illinois · BCR 22

Mt Vernon Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 45 survey years, still active.

103Species 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 →
45Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2025Span
8Observers

Bird Species Found on Illinois Mt Vernon

Top 40 of 103 species by most recent count. Each links to its species trend.

Species recorded on the Mt Vernon 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 CrowCorvidae110202520×1975
European StarlingSturnidae99202527×1973
Northern CardinalCardinalidae712025+137%1973
Red-winged BlackbirdIcteridae692025-49%1973
Indigo BuntingCardinalidae622025-6%1973
Tufted TitmouseParidae482025+435%1973
Mourning DoveColumbidae392025+49%1973
House SparrowPasseridae312025-70%1973
Carolina ChickadeeParidae292025+450%1973
Rock PigeonColumbidae282022+520%1977
Canada GooseAnatidae272025+85%1996
Red-bellied WoodpeckerPicidae262025+430%1974
Common YellowthroatParulidae252025-5%1973
Chipping SparrowPasserellidae242025+714%1980
Brown-headed CowbirdIcteridae212025+47%1974
Barn SwallowHirundinidae162025-6%1973
Northern MockingbirdMimidae162025-15%1973
Song SparrowPasserellidae152025-9%1973
Northern BobwhiteOdontophoridae142025-17%1973
Blue JayCorvidae142025+34%1973
DickcisselCardinalidae142025-58%1973
Eastern MeadowlarkIcteridae132025-85%1973
Carolina WrenTroglodytidae132025+171%1973
American RobinTurdidae132025-47%1973
Blue GrosbeakCardinalidae13202513×1980
Eastern Wood-PeweeTyrannidae122025+16%1973
Blue-gray GnatcatcherPolioptilidae122025+650%1987
Eastern BluebirdTurdidae112025+42%1973
American GoldfinchFringillidae112025+88%1975
Purple MartinHirundinidae102025+108%1979
Bank SwallowHirundinidae101980n/an/a
KilldeerCharadriidae92025+200%1973
Great Crested FlycatcherTyrannidae92025+175%1973
Field SparrowPasserellidae92025-72%1973
Northern House WrenTroglodytidae92025+44%1974
Eastern KingbirdTyrannidae82025-31%1973
Great EgretArdeidae82006+167%1997
Common GrackleIcteridae72025-95%1973
Yellow-breasted ChatIcteriidae72025+11%1973
Brown ThrasherMimidae72025-59%1973

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