60 birds were recorded seen in Kansas in April in our iNaturalist sample; 31 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in April

American Robin

Northern Cardinal

Blue-winged Teal
Canada Goose

House Sparrow
Red-winged Blackbird

Turkey Vulture
House Finch

Mourning Dove

Great Blue Heron

Mallard

European Starling
All birds seen in Kansas in April
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | American Robin | Turdus migratorius | Thrushes | 672 | Apr (peak) |
| 2 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 427 | Apr (peak) |
| 3 | Blue-winged Teal | Spatula discors | Ducks, Geese, and Swans | 358 | Apr (peak) |
| 4 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 352 | Apr (peak) |
| 5 | House Sparrow | Passer domesticus | Old World Sparrows | 298 | Apr (peak) |
| 6 | Red-winged Blackbird | Agelaius phoeniceus | New World Blackbirds and Orioles | 254 | Apr (peak) |
| 7 | Turkey Vulture | Cathartes aura | New World Vultures | 248 | Apr (peak) |
| 8 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 242 | May (rising) |
| 9 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 238 | May (rising) |
| 10 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 222 | May (rising) |
| 11 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 211 | Apr (peak) |
| 12 | European Starling | Sturnus vulgaris | Starlings | 208 | May (rising) |
| 13 | Northern Shoveler | Spatula clypeata | Ducks, Geese, and Swans | 193 | Apr (peak) |
| 14 | Baird's Sandpiper | Calidris bairdii | Sandpipers and Allies | 183 | Apr (peak) |
| 15 | Common Grackle | Quiscalus quiscula | New World Blackbirds and Orioles | 179 | May (rising) |
| 16 | Brown Thrasher | Toxostoma rufum | Mockingbirds and Thrashers | 175 | Apr (peak) |
| 17 | Brown-headed Cowbird | Molothrus ater | New World Blackbirds and Orioles | 161 | May (rising) |
| 18 | Chipping Sparrow | Spizella passerina | New World Sparrows | 152 | Apr (peak) |
| 19 | Eastern Bluebird | Sialia sialis | Thrushes | 150 | May (rising) |
| 20 | Lesser Yellowlegs | Tringa flavipes | Sandpipers and Allies | 149 | Apr (peak) |
| 21 | Harris's Sparrow | Zonotrichia querula | New World Sparrows | 149 | Apr (peak) |
| 22 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 144 | Apr (peak) |
| 23 | Killdeer | Charadrius vociferus | Plovers and Lapwings | 141 | May (rising) |
| 24 | Blue Jay | Cyanocitta cristata | Crows, Jays, and Magpies | 139 | May (rising) |
| 25 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 139 | Apr (peak) |
| 26 | American Coot | Fulica americana | Rails, Gallinules, and Coots | 138 | Apr (peak) |
| 27 | Eastern Phoebe | Sayornis phoebe | Tyrant Flycatchers | 134 | May (rising) |
| 28 | Lincoln's Sparrow | Melospiza lincolnii | New World Sparrows | 132 | Apr (peak) |
| 29 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 127 | Apr (peak) |
| 30 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 111 | Nov (rising) |
| 31 | White-throated Sparrow | Zonotrichia albicollis | New World Sparrows | 110 | Apr (peak) |
| 32 | American Avocet | Recurvirostra americana | Stilts and Avocets | 109 | Apr (peak) |
| 33 | Red-bellied Woodpecker | Melanerpes carolinus | Woodpeckers | 109 | Apr (peak) |
| 34 | Tree Swallow | Tachycineta bicolor | Swallows and Martins | 108 | Apr (peak) |
| 35 | Yellow-headed Blackbird | Xanthocephalus xanthocephalus | New World Blackbirds and Orioles | 107 | Apr (peak) |
| 36 | Yellow-rumped Warbler | Setophaga coronata | New World Warblers | 103 | Apr (peak) |
| 37 | Double-crested Cormorant | Nannopterum auritum | Cormorants and Shags | 100 | Mar (past peak) |
| 38 | Tufted Titmouse | Baeolophus bicolor | Tits, Chickadees, and Titmice | 98 | Apr (peak) |
| 39 | Great Egret | Ardea alba | Herons, Egrets, and Bitterns | 98 | Sep (rising) |
| 40 | White-crowned Sparrow | Zonotrichia leucophrys | New World Sparrows | 94 | Apr (peak) |
| 41 | Greater Yellowlegs | Tringa melanoleuca | Sandpipers and Allies | 93 | Apr (peak) |
| 42 | American White Pelican | Pelecanus erythrorhynchos | Pelicans | 92 | Sep (rising) |
| 43 | Barn Swallow | Hirundo rustica | Swallows and Martins | 92 | May (rising) |
| 44 | Swainson's Thrush | Catharus ustulatus | Thrushes | 92 | May (rising) |
| 45 | Savannah Sparrow | Passerculus sandwichensis | New World Sparrows | 91 | Apr (peak) |
| 46 | Franklin's Gull | Leucophaeus pipixcan | Gulls, Terns, and Skimmers | 91 | Oct (rising) |
| 47 | Lark Sparrow | Chondestes grammacus | New World Sparrows | 90 | May (rising) |
| 48 | Barred Owl | Strix varia | Typical Owls | 89 | Apr (peak) |
| 49 | White-faced Ibis | Plegadis chihi | Ibises and Spoonbills | 88 | Apr (peak) |
| 50 | Bald Eagle | Haliaeetus leucocephalus | Hawks, Eagles, and Kites | 86 | Feb (past peak) |