BirdAnalyst
BBS Route · Illinois · BCR 22

Mascoutah Lk Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 112 species recorded across 56 survey years, still active.

112Species 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 →
56Years 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
5Observers

Bird Species Found on Illinois Mascoutah Lk

Top 40 of 112 species by most recent count. Each links to its species trend.

Species recorded on the Mascoutah Lk 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 BlackbirdIcteridae852025-29%1969
European StarlingSturnidae502025+30%1969
Common GrackleIcteridae422025-72%1969
American RobinTurdidae422025+174%1969
Barn SwallowHirundinidae412025+12%1969
Northern CardinalCardinalidae322025+37%1969
Mourning DoveColumbidae292025+6%1969
American CrowCorvidae262025+91%1969
DickcisselCardinalidae242025-52%1969
Indigo BuntingCardinalidae192025+64%1969
Red-bellied WoodpeckerPicidae182025+333%1969
Tufted TitmouseParidae18202512×1970
Great Crested FlycatcherTyrannidae172025+375%1978
Fish CrowCorvidae172025-31%2008
Song SparrowPasserellidae162025+96%1969
Chimney SwiftApodidae152025-30%1969
House SparrowPasseridae142025-91%1969
Rock PigeonColumbidae142025-38%1970
Cedar WaxwingBombycillidae142021+133%1998
Blue JayCorvidae122025+317%1969
Eastern MeadowlarkIcteridae122025-78%1969
Common YellowthroatParulidae112025+520%1972
Carolina WrenTroglodytidae102025+178%1972
Turkey VultureCathartidae102025+650%2007
Blue GrosbeakCardinalidae102025+178%2007
KilldeerCharadriidae92025+382%1969
Northern BobwhiteOdontophoridae92025-86%1969
Brown ThrasherMimidae92025+100%1969
Canada GooseAnatidae92025+179%1988
Eastern KingbirdTyrannidae82025+400%1971
Sedge WrenTroglodytidae82013+700%2008
Purple MartinHirundinidae72025+450%1969
Northern House WrenTroglodytidae72025+250%1976
Pileated WoodpeckerPicidae72025+260%1987
Horned LarkAlaudidae62025-8%1969
Brown-headed CowbirdIcteridae62025+120%1969
Warbling VireoVireonidae62025+180%1969
Carolina ChickadeeParidae62024+71%1981
White-breasted NuthatchSittidae62024+40%1983
Great Blue HeronArdeidae62025+133%1992

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