Some Animals Eat Meat
Some Animals Eat Fish
Some Animals Eat Nuts
Some Animals Eat Grass
Some Animals Eat Leaves and Branches from Trees
Some Animals Eat Plants andVegetables Birds eat all food sources, though individual birds do not use all the foods available. Some, such as crows and jays, are generalists able to use a variety of foods, birds like eagles eat only meat, warblers only insects, and cardinals only seeds.
Birds can eat seeds, insects, nectar, meat, berries, and plant material, depending on their physical adaptations to do so.