"Tough Month For Wildlife"
"March is the most difficult month of the year for birds to find adequate food to survive winter in most of North America. That’s because the supplies of natural food....last year’s seeds, fruits, berries and insect eggs and larvae...are at their lowest levels after months of birds feeding on them. March is too early for a new crop of seeds, fruits, berries, and insects to be available. Therefore, birds have to work harder to find sufficient food during a month when it is still very wintry in much of the country."
"That’s why March is the best time of the year to feed birds in the backyard. They will respond more readily to feeder foods offered in March than at any other time of the year. Isn’t it curious that in fall...October and November...when natural foods are most abundant, people take the greatest interest in feeding birds? It is in fall when there are the greatest number of bird seed sales, bird feeding seminars, bird store sales, and start-up backyard bird feeding efforts. By March, the interest in bird feeding has waned, at a time when the birds need it most.
Though birds are not dependent on feeders for their survival (studies have shown that birds glean 75 percent of their daily food from the wild, even when feeder foods are available), feeding them in March will make life a little easier for them, and under severe conditions, may even save them from starvation. "
-- George H. Harrison