Volunteers at the July Crosby weeding event found this perfect little bird's nest in an American Hemp plant in the middle of the prairie they were removing yellow mustard and burdock from.

If take a closer look at the photo, you'll notice that two of the eggs have brown speckles and one is plain white. The brown speckled eggs are likely cowbird eggs. Brown-headed Cowbirds are notorious brood parasites, laying their eggs in the nests of other birds and relying on them to incubate and raise their young. Scientists have recorded over 220 bird species that have been parasitized by cowbirds, and though some reject the cowbird eggs, at least 150 species are known to have raised the cowbird chicks. It's hard to say what kind of bird made this nest and laid the white egg - our best guess is a chipping sparrow.