According to the Cornell Lab of Orthinology - All About Birds:
"American Crows are familiar over much of the continent: large, intelligent, all-black birds with hoarse, cawing voices. They are common sights in treetops, fields, and roadsides, and in habitats ranging from open woods and empty beaches to town centers. They usually feed on the ground and eat almost anything – typically earthworms, insects and other small animals, seeds, and fruit but also garbage, carrion, and chicks they rob from nests." http://www.allaboutbirds.org/guide/American_Crow/id

This one landed fairly close to me at Alton Baker Park, looking for food. When one really looks closely they are quite pretty! The Crow is also an intelligent bird!