One of the maple trees in our yard is in rough shape and has been seeding like CRAZY (a last ditch effort to reproduce before it dies - which it won't because we're making sure our landlord takes care of it. It needs a large branch removed, and then it should be ok). There have been thousands of seeds falling in the yard - hundreds of huge clumps of seeds. I think they've finally all dropped, but now baby maple trees are sprouting up all over. Sometimes I find one like this that still has its helicopter thingy attached. Cute!