What's this Winnie-the-Pooh song?

When I was little, I had this Winnie-the-Pooh audio cette and one of the songs was something about looking for heffalumps and it was song by Rabbit. At one point he found a clump of fur stuck to a tree or bush or something like that. That's all I can remember about it. Can anyone tell me the name of this song or a link where I can hear it? Any info would be greatly appreciated!