Dark pee or diarrhea in newborn bunny?

by Ashley
(Bothell)

My cat brought me a newborn baby bunny yesterday and i took it from her. I have been feeding it kitten formula mixed with heavy whipping cream and water and it eats it really good. I have also been wiping it to make it go to the bathroom and its pooping little pellet like things.

But today after feeding im not sure if it peed or if it was diarrhea but it was a yellow brownish color, it looked like diarrhea but it smelled like pee. so im not sure if i should give it pedialite or what. the baby is really small. it has fuzzy soft fur, its ears are just starting to poke up but its eyes are not open yet so I don't know how old it is. I'm guessing maybe a few days. I can't find the nest anywhere to put it back.

I found other remains of baby bunnies and a bunch of mom fur but no mother and I have been keeping a watch on the spot where the dead babies were and where the fur was so I'm not sure if my cat got the mom as well because I have not seen her coming around that spot. if you can give some answers I would greatly appreciate it. Thank you.