Unlucky rabbit foot

Some time ago when I was hunting rabbits I fashioned a necklace from a rabbit foot. They are supposed to be lucky for the wearer (not so lucky for the rabbit) and at first I think I actually found more birds nests than usual but no more. As I was making magic shortbows yesterday I remembered I forgot to wear my rabbit foot, so I went to get it from storage. During the rest of the day I haven't found any birds nests and to be honest I cannot remember when I last encountered one. Seems rabbit feet aren't so lucky for the wearer either...