Here's a funny addition to a bird's nesting material. Last year while I was reading quietly on my (open) porch swing, a little bird landed on my head and gently started rooting around for loose hairs and flew away with some. This happened 3 times and I chuckled all the while hoping it wouldn't do any business on my head while there. After telling my husband about it, the next day the same thing happened to him while he was reading. It was so cute. It was a tufted titmouse.