BirdAnalyst
BBS Route · Illinois · BCR 22

Lake Summerset Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 97 species recorded across 21 survey years, still active.

97Species 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 →
21Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2001–2025Span
2Observers

Bird Species Found on Illinois Lake Summerset

Top 40 of 97 species by most recent count. Each links to its species trend.

Species recorded on the Lake Summerset 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 BlackbirdIcteridae1362025-56%2003
American RobinTurdidae912025-44%2003
American CrowCorvidae652025-15%2003
House SparrowPasseridae572025-54%2003
Barn SwallowHirundinidae412025-31%2003
Northern House WrenTroglodytidae332025-28%2003
Mourning DoveColumbidae302025-59%2003
Northern CardinalCardinalidae252025-3%2003
Brown-headed CowbirdIcteridae212025-38%2003
House FinchFringillidae192025-27%2003
Chipping SparrowPasserellidae192025-40%2003
Common YellowthroatParulidae192025+50%2003
Song SparrowPasserellidae182025-57%2003
KilldeerCharadriidae152025-50%2003
Canada GooseAnatidae142025+211%2004
Indigo BuntingCardinalidae122025-42%2003
Gray CatbirdMimidae122025+0%2003
Eastern MeadowlarkIcteridae112025-34%2003
DickcisselCardinalidae92025-18%2003
Cedar WaxwingBombycillidae92025-85%2003
Chimney SwiftApodidae82025-74%2003
Eastern KingbirdTyrannidae72025-22%2003
Blue JayCorvidae72025-50%2003
American GoldfinchFringillidae72025-65%2003
Tree SwallowHirundinidae72025+111%2003
Great EgretArdeidae72008+133%2004
Eastern Wood-PeweeTyrannidae62025+0%2003
Baltimore OrioleIcteridae62025-59%2003
Common GrackleIcteridae62025-80%2003
Cliff SwallowHirundinidae62025-72%2003
Warbling VireoVireonidae62025-65%2003
White-breasted NuthatchSittidae62025+0%2003
European StarlingSturnidae52025-71%2003
Sandhill CraneGruidae52022+43%2013
Rock PigeonColumbidae42022-78%2003
Red-tailed HawkAccipitridae42025+25%2003
Black-capped ChickadeeParidae42025-22%2003
Yellow-billed CuckooCuculidae42019-20%2007
Great Blue HeronArdeidae32025-50%2003
Downy WoodpeckerPicidae32025-68%2003

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