![]() She finds nests to deposit her eggs by observing. She takes a few days to rest then she starts this process all over again and will do this for several weeks. She may lay one egg in several different bird nests depending on how many there are. The female lays one egg per day for up to seven days. They will also come to your bird feeders if you provide sunflower seed, cracked corn, or millet in them.īreeding season for these birds starts about mid to late April and goes until mid July. You can find them in residential neighborhoods, pastures, fields, orchards, prairies, and near woodland edges feeding on seeds from grasses and weeds, grasshoppers, beetles, caterpillars, and spiders. These Cowbirds are native to the northern continent found throughout the United States, Canada, and Mexico. Compare that to the European Starling at 8.5 inches long and the Crow at 17.5 inches long. Cowbirds are considered one of the smaller blackbirds at 7.5 inches long. The female is smaller and are a solid brown with a whitish throat and light streaking on their undersides. The male Brown-headed Cowbird has a black body with a dull brown head. They hate seeing their beautiful songbirds raising these invasive birds that take over their feeders and bully the other birds. This is why many people want to get rid of Cowbirds in their backyards. The female doesn’t want to waste any energy so she lays her eggs in the nest of another bird species such as a Wren or Bluebird or Cardinal. Adult Cowbirds do not build a nest nor do they raise their young. That’s how it works with the Brown-headed Cowbird. ![]() It could be up to two hundred and twenty different species of birds that may end up fostering this parasitic bird. Or replace the wren with a Northern Cardinal or Eastern Bluebird. A little Carolina Wren feeding a big fat Cowbird baby. You’ve seen it in your yard before I’m sure. ![]()
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