Injured Bunny

Hello
Unfortunately, my cat found several bunnies and injured one of them. I wasn't sure how badly that bunny was hurt so I left it in the nest with the uninjured and re-covered the hole.

The next day I went to check on the little ones and there was one less bunny. We haven't let the cat out since the incident and have a fenced in yard. The bunnies are also pretty young and I don't think they're venturing out of the nest by themselves. Would the mother rabbit remove the injured (possibly deceased) bunny?