There are nearly 1,600 types ... seed catalog, and actually it’s not a catalog at all, but a seed swap of treasures begun 50 years ago, conducted back then by mail under the name True Seed ...

However, not all bird species are attracted to the same types ... oil sunflower seeds, millet, cracked corn, and sometimes peanuts or safflower seeds. This variety ensures that different bird ...

The struggle is mainly about food -- different types of seeds -- and the availability of that food is dramatically influenced by year-to-year weather changes. Natural selection at its most ...