Seasonal Presence and Relative Frequency of Selected Species
This list summarizes the seasonal presence of selected bird species in Iowa, indicating whether each species occurs year-round, during the breeding season, or during the non-breeding season (winter and migration). Within each seasonal category, species are numbered and ordered from least to most frequently observed in the United States based on eBird frequency data. This ordering reflects how commonly a species has been observed by U.S. birders over time and is used here as a relative priority indicator, not as a measure of local abundance or the likelihood of encountering a species at a specific site or season within Iowa.
Greater Prairie-Chicken
Northern Bobwhite
Henslow’s Sparrow
Upland Sandpiper
Cerulean Warbler
Black-billed Cuckoo
Kentucky Warbler
American Woodcock
Sedge Wren
Clay-colored Sparrow
Bell’s Vireo
Mississippi Kite
Blue-winged Warbler
Louisiana Waterthrush
Prothonotary Warbler
Least Tern
Bobolink
Dickcissel
Hooded Warbler
Prairie Warbler
Willow Flycatcher
Least Flycatcher
Yellow-throated Warbler
Veery
Orchard Oriole
Summer Tanager
Scarlet Tanager
Rose-breasted Grosbeak
Baltimore Oriole
Indigo Bunting
Smith’s Longspur
Hudsonian Godwit
White-winged Crossbill
Snowy Owl
Northern Shrike
Snow Bunting
Harris’s Sparrow
Rough-legged Hawk
Lesser Black-backed Gull
Redpoll
American Tree Sparrow
American Black Duck
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