This species' plumage is virtually identical to that of the American crow. Visual differentiation from the American crow is extremely difficult and often inaccurate. Like the American crow, the sexes look the same. These habits have historically caused the American crow to be considered a nuisance. The northwestern crow ("C. caurinus") is very closely related to the American crow. The American crow is all black, with iridescent feathers. The American crow was described by Christian Ludwig Brehm in 1822. The American crow was recorded in Bermuda from 1876 onwards. Common game birds include ring-necked pheasant, eastern wild turkey, American crow, and Canada goose. One avian scavenger, the American crow, was recently evaluated as a potential vector for CWD. Also, the American crow, and kestrel. The American crow population of the United States has grown over the years. The American crow is a large, distinctive bird with iridescent black feathers all over. From beak to tail, an American crow measures , almost half of which is tail. The American crow, nevertheless, occupies the same role that the hooded crow does in Eurasia.