Keep the pieces shorter than two inches to reduce the risk of birds getting tangled in them. Offer pet or human hair in onion bags or put in obvious places. If you looked at a hundred bird nests, chances are that most of them would have some animal hair in them. It's soft, insulating, and easy to gather. Put out eggshells for birds.
Eggshells help female birds replace calcium lost during egg production and laying.
Continue to feed high-protein foods such as mealworms, peanuts, and suet. Don't stop feeding your birds, unless you want to miss out on some fabulous behavior watching. These young birds will learn at an early age where your feeders are. Don't mow meadows or brushy areas between late April and mid-August. We keep our farm fields long and grassy all summer long, mowing only a few paths that we keep short all year.