Bird feed, also known as birdseed, refers to a mixture of seeds and grains specifically formulated to meet the dietary needs of various bird species. Bird feed is commonly used to attract birds to feeders in gardens, parks, and yards, providing them with a supplemental food source, especially during seasons when natural food supplies may be scarce.

The composition of bird feed varies depending on the types of birds targeted and the preferences of the feeder. Common ingredients found in bird feed mixes include:

1. Sunflower seeds: Sunflower seeds are a popular choice among many bird species due to their high fat content and nutritional value.

2. Millet: Millet is a small, nutritious seed that is attractive to a wide range of bird species, including sparrows, finches, and doves.

3. Nyjer (thistle) seed: Nyjer seed is a small, oil-rich seed that is particularly favored by finches, such as goldfinches and siskins.

4. Safflower seeds: Safflower seeds are a favorite of cardinals and other birds, and they are often included in bird feed mixes.

5. Peanuts: Peanuts are a good source of protein and fat, and they are enjoyed by many bird species, including woodpeckers, jays, and chickadees.

6. Cracked corn: Cracked corn is a common ingredient in bird feed mixes, especially for ground-feeding birds like sparrows, doves, and quail.

7. Mealworms: Dried mealworms are a high-protein food source that is attractive to insect-eating birds such as bluebirds, robins, and warblers.

In addition to these basic ingredients, bird feed mixes may also contain other seeds, nuts, fruits, or suet to attract a diverse range of bird species. It\'s essential to provide a variety of feeders and feed types to accommodate different feeding behaviors and preferences among birds.