Hello again!
My dad has absolutely fallen for his rescue mice, and is now working on setting them up with little mansions! He asked me to "ask your mice friends on the internet" to help sex the babies :3
We're not 100% sure on #2 & #3 (thinking male), but think #1, #4, & #5 are female.
My dad recently rescued 5 mice from a customer's car's air filter a few days ago, and he's been taking care of them at home (feeding and cleaning ever 3-4 hours, etc).
A couple of the mice keep doing this weird arching and suckling the air while pawing with their hands motion (video attached)— and at least one of them does it every feeding while the other 2-3 only do it some times.
Neither one of us is experienced with rodent care, so I was hoping someone could let us know if it's something we should be worried about (more than we already are), or if this is just normal baby mice behavior.
(maybe the babies are just "trying to find the ninny" as my dad has been saying. 😅 )