Food Food is one of the primary necessities of wildlife. Every species has its own food needs. Often, this changes as the species ages. Food includes the nutritional part of the diet as well as supplements such as salt. Also, many birds require grit or gravel for grinding up food in their gizzards.
Some wildlife eat a variety of foods and others eat only a few different kinds.
Fruits and berries are rich in vitamins and carbohydrates and are usually available in the summer and fall. These include elderberries, blackberries, strawberries, raspberries, cherries, grapes, mulberries, and apples. Some varieties, such as mountain ash and holly, have berries that stay on the bush or tree and are available to wildlife in the winter. One of the most popular berries for birds is elderberries. Fifty-one different bird species eat them.