Killdeer spend the summer in Decorah. They feed primarily on invertebrates year-round, including earthworms, snails, crayfish, grasshoppers, beetles, caterpillars, spiders, centipedes, fly larvae and aquatic insect larvae, although they will eat seeds. Cornell mentions that killdeer have been seen eating dead minnows and hunting frogs.
Killdeer nest in shallow depressions that they scrape into the ground, adding rocks, bits of shell, sticks, and trash to the nest after egg-laying begins. Killdeer lay four to six eggs per clutch and may produce up to three broods per year. They incubate eggs for 22-28 days and young leave the nest immediately after hatching. To learn more, visit Cornell’s website.
Killdeer are perhaps most famous for their broken wing display: