Janine,
I first got the idea several years ago when I colored my hair blond. I was sitting under a tree when I felt something on my head. It was a bird trying to yank the stringy dry mess off my head for its nest. Every time I sat in that spot over several days I got the same treatment. I compared my hair to some cotton I had grown and decided to try giving it to the birds. I have found my cotton offerings lining nests ever since; little hummingbird nests blown out of the tall oaks are almost always lined with it.
Tmi?