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BBS Route · Illinois · BCR 22

Janesville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 98 species recorded across 44 survey years, still active.

98Species Recorded
44Years Surveyed
1972–2024Span
9Observers

Bird Species Found on Illinois Janesville

Top 40 of 98 species by most recent count. Each links to its species trend.

Species recorded on the Janesville route.
History
Red-winged BlackbirdIcteridae1732024+1%1974
European StarlingSturnidae1202024+7%1974
House SparrowPasseridae1042024-59%1974
Mourning DoveColumbidae652024+60%1974
KilldeerCharadriidae49202430×1977
American RobinTurdidae482024+163%1974
Song SparrowPasserellidae472024+205%1974
Common GrackleIcteridae412024-80%1974
American GoldfinchFringillidae382024+556%1975
Common YellowthroatParulidae352024+285%1974
DickcisselCardinalidae342024+156%1974
Brown-headed CowbirdIcteridae33202412×1974
Northern CardinalCardinalidae292024+137%1974
Canada GooseAnatidae282024+370%2005
American CrowCorvidae262024+319%1974
Barn SwallowHirundinidae252024+51%1974
Indigo BuntingCardinalidae222024+72%1974
Horned LarkAlaudidae212024-76%1974
Northern House WrenTroglodytidae212024+460%1977
Eastern MeadowlarkIcteridae162024-76%1974
Chipping SparrowPasserellidae15202415×1983
Eastern KingbirdTyrannidae142024+100%1974
Purple MartinHirundinidae142024+600%2000
Tree SwallowHirundinidae142024+117%2012
Blue GrosbeakCardinalidae122024+900%2012
Rock PigeonColumbidae92023+14%1976
Turkey VultureCathartidae9202413×1991
House FinchFringillidae92024+280%1996
Cliff SwallowHirundinidae72024+50%2000
Vesper SparrowPasserellidae62024+375%1974
Warbling VireoVireonidae62024+257%1976
Great Crested FlycatcherTyrannidae62023+300%1989
Red-tailed HawkAccipitridae62024+150%2000
Field SparrowPasserellidae52024-44%1974
Gray CatbirdMimidae52024+238%1974
Yellow-breasted ChatIcteriidae52024+200%1987
Wood ThrushTurdidae52024+50%1980
Eastern PhoebeTyrannidae42024+167%1983
Great Blue HeronArdeidae42024+83%1997
Northern BobwhiteOdontophoridae32024-79%1974

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.