Baby bunnies concern

Question
Hello! I have a about 15 rabbits and one of my rabbits, a purse netherland dwarf and its color is chinchilla. Ya..so.. she had babies and they came out of the nesting box and there are 3 of them. One of them has a dry hard patch looking like dirt but hard as a rock. When u feel it, it is like a hard bone sticking out but no. Anyways it does not obviously come out and i need some help knowing what this is! :-0
~~Maimoonah

Answer
Without being able to see it in person, I don't really have any idea of what it could be.  There are many different things it could be, but it sounds like a trip to your vet for a definite diagnosis is in order.  If you need help in finding a rabbit-savvy vet in your area (they are considered an exotic animal and should only be cared for by a vet who has experience with their delicate systems) check out this link:  http://www.rabbit.org/vets/vets.html  Sorry I can't be of more help, but I hope you're able to figure it out soon!  Blessings, Lori