The common grackle (Quiscalus quiscula) is a familiar bird in North America, almost entirely east of the Rocky Mountains. It can be found most anywhere except in the western states and provinces. In the winter it migrates slightly southwest, but still extends itself to the Northeastern United States.
The Common Grackle species includes the Purple Grackle and the Bronze Grackle, both of which are widespread. The Purple has the overall black coloring, with purple and green gloss. The Bronze also has the overall black coloring, with a bronze gloss and a blue-black head. The females are a dully, not a glossy, black with a faint glossy purple on the neck and head. Both males and females have pale yellow eyes. Both have long pointed black beaks. Baby birds have dark eyes.
Grackles have 1-2 broods of 4-7 eggs a season. Their nests are set high in trees, in marshes or in building eaves. They are widespread in open areas and woodlands. Grackles stay in flocks year round. They nest and forage for food in their flocks. They feed on insects, worms, grains, seeds, eggs and babies of other birds and small fish and rodents. They are capable of damaging and destroying crops since they forage and travel in large numbers. This makes them a pest to farmers who often aim to destroy the flocks to save their crops.