The primary ingredient in most commercial birdseed mixes is typically sunflower seeds.

Sunflower seeds are highly nutritious and attractive to many bird species, making them a popular choice in birdseed mixes.

These mixes may also contain other seeds such as millet, safflower, cracked corn, and sometimes nuts and dried fruits to provide a varied and balanced diet for different bird species.

Different types of birdseed mixes cater to various birds’ preferences, from small songbirds to larger birds like cardinals and jays.