I found these two little ones in the chicken coop last evening – not a safe place for baby mice! I have no idea what possessed mother mouse to have her babies in a hen coop, nor was there any sign of mom or additional babies. These two were wandering about and I almost stepped on one of them. I suspect they’re no more than a week or two old. Their eyes are not yet open and they’re about an inch long. I didn’t have much hope that we could keep them alive, even overnight, but alas they’re still hanging in there! I went out and picked up some kitten formula and have been feeding them every hour or so.
According to what I read online, once they open their eyes, they should be able to be weaned from the formula and started on small seeds (gerbil or hamster food). They’re adorable and I do hope they make it.