What are facts about cowbirds?

Cowbirds are a group of brood parasitic birds belonging to the family Icteridae, primarily found in North America. They lay their eggs in the nests of other bird species, often leading to the host birds raising cowbird chicks at the expense of their own young. There are several species of cowbirds, with the Brown-headed Cowbird being the most well-known. These birds have adapted well to human-altered environments, thriving in agricultural and urban areas.