BirdAnalyst
BBS Route · Illinois · BCR 22

Mackinaw Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 99 species recorded across 56 survey years, still active.

99Species 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 →
1966–2025Span
9Observers

Bird Species Found on Illinois Mackinaw

Top 40 of 99 species by most recent count. Each links to its species trend.

Species recorded on the Mackinaw 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 BlackbirdIcteridae2072025+89%1968
American RobinTurdidae1432025+522%1968
Cliff SwallowHirundinidae772025+8%2001
House SparrowPasseridae752025-58%1968
Common GrackleIcteridae602025-2%1968
European StarlingSturnidae542025+12%1968
Eastern MeadowlarkIcteridae382025-53%1968
Mourning DoveColumbidae312025+136%1968
Northern CardinalCardinalidae252025+131%1968
KilldeerCharadriidae242025+943%1971
DickcisselCardinalidae242025-77%1968
Northern BobwhiteOdontophoridae212025-52%1968
Barn SwallowHirundinidae202025+20%1968
Canada GooseAnatidae202025+320%1993
Song SparrowPasserellidae162025+69%1968
Bank SwallowHirundinidae132017+46%1971
Northern House WrenTroglodytidae122025+135%1968
Chimney SwiftApodidae92025+0%1968
Horned LarkAlaudidae92025-84%1968
Chipping SparrowPasserellidae92025+620%1974
Indigo BuntingCardinalidae82025+82%1968
American CrowCorvidae72025-71%1968
Vesper SparrowPasserellidae72025+36%1978
Common YellowthroatParulidae72025+57%1968
Gray CatbirdMimidae72025+260%1968
House FinchFringillidae72025+20%1994
Blue JayCorvidae62025-56%1968
Purple MartinHirundinidae62025-33%1968
Red-bellied WoodpeckerPicidae52025+533%1968
Brown-headed CowbirdIcteridae52025+170%1968
Warbling VireoVireonidae52025+144%1969
Eastern Wood-PeweeTyrannidae42025+240%1972
Tree SwallowHirundinidae42025-33%1970
Ring-necked PheasantPhasianidae32025-86%1968
Rock PigeonColumbidae32025-52%1968
American KestrelFalconidae32025-67%1986
Eastern KingbirdTyrannidae32025-20%1968
Baltimore OrioleIcteridae32025-29%1969
American GoldfinchFringillidae32025+13%1968
Grasshopper SparrowPasserellidae32025-83%1968

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