Bird food

Bird food is food (often varieties of seeds, nuts, or dried fruits) eaten by birds. While most bird food is fed to commercial fowl, people also use bird food to feed pet birds or wild birds.

The various types of bird food reflect the species of bird that can be fed, whether they are carnivores or nectar eating birds.

While it is a popular practice to feed wild birds from bird feeders, they can carry potential risks for the birds that feed there, such as disease, malnutrition, and predation by domestic animals.

Black sunflower seeds are highly recommended for use in bird feeders because they attract a wide variety of birds, have a high ratio of meat to shell, and are high in fat content. Other common bird seeds include Niger, or thistle seed, a favorite of goldfinches, millet for sparrows and juncos, and safflower for cardinals, among others.

Suet is recommended for insect-eating birds like nuthatches and woodpeckers. Artificial nectar – essentially sugar water – attracts hummingbirds. Bread and kitchen scraps are often fed to ducks and gulls. Chickens are commonly fed maize, wheat, barley, sorghum and milling by-products, in a mixture traditionally called chicken scratch.

These seeds and non-seed supplies are commonly obtained as by-products on farms, but can also be bought from independent retailers.

...
Wikipedia