When I was pruning a camelia to get ready for Memorial Day, I found this nest in a branch I had cut. It's made entirely of cotton, with some jacaranda leaves caught in it. It's about 2 inches long, 3/4 of an inch thick, with a depression in it maybe 1/4 of an inch. It must have been a very tiny bird. Hummingbird nests I've seen have been sacks hanging from twigs. This is just a pad with a little depression in it. Cool.