BirdAnalyst
BBS Route · Iowa · BCR 22

Exline Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 105 species recorded across 50 survey years, still active.

105Species Recorded
50Years Surveyed
1974–2024Span
4Observers

Bird Species Found on Iowa Exline

Top 40 of 105 species by most recent count. Each links to its species trend.

Species recorded on the Exline route.
History
Red-winged BlackbirdIcteridae1072024+119%1976
Purple MartinHirundinidae49202418×1976
DickcisselCardinalidae382024-20%1976
American RobinTurdidae312024+15%1976
Mourning DoveColumbidae232024+62%1976
Barn SwallowHirundinidae202024-2%1976
Canada GooseAnatidae192024+265%1996
Northern House WrenTroglodytidae162024+27%1976
Turkey VultureCathartidae162024+286%1993
Eastern MeadowlarkIcteridae152024-56%1976
Northern CardinalCardinalidae152024+478%1976
Northern BobwhiteOdontophoridae142024-88%1976
Rock PigeonColumbidae142024+106%1979
Eastern KingbirdTyrannidae142024+59%1976
Gray CatbirdMimidae142024+300%1976
Common YellowthroatParulidae122024-23%1976
Cliff SwallowHirundinidae12202411×1990
Indigo BuntingCardinalidae112024+0%1976
Brown-headed CowbirdIcteridae102024+36%1976
American CrowCorvidae92024+113%1976
Eastern TowheePasserellidae92024+467%1980
MallardAnatidae92014+50%2004
European StarlingSturnidae82024+17%1976
Black TernLaridae82007n/an/a
Song SparrowPasserellidae72024+150%1979
Eastern Wood-PeweeTyrannidae62024+150%1980
Baltimore OrioleIcteridae62024-20%1978
Red-headed WoodpeckerPicidae52024-66%1976
Common GrackleIcteridae52024-75%1976
Savannah SparrowPasserellidae52006+167%1981
Tree SwallowHirundinidae52022+0%1992
Cedar WaxwingBombycillidae52024+50%1990
Ring-necked PheasantPhasianidae42024+100%1976
Rose-breasted GrosbeakCardinalidae42024+30%1978
Chipping SparrowPasserellidae42024+225%1998
KilldeerCharadriidae32024+55%1976
Red-bellied WoodpeckerPicidae32024+160%1976
Eastern PhoebeTyrannidae32024+57%1981
Blue JayCorvidae32024-6%1976
BobolinkIcteridae32024+567%1984

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