I have a hooded girl (Po) who is behaving quite odd, I was hoping someone could chime in on what's going on in her little head!
Some history - we adopted Po about 6 months ago without knowing her background. She was extremely antisocial with the other 3 girls in the cage (but a sweetie to humans), about 2 weeks after we got her she stopped coming out of one of the play houses completely and overnight, we saw this massive rat's nest - and removed a VERY pregnant rat! She gave birth to 9 healthy babies, 8 girls and one boy. We adopted a number of them out and kept the rest, since we had plenty of room for them.
We fell in love with the little boy and had him neutered at 4 months old and returned him to the cage to live with his momma Po and sisters after the 14 day wait, like the vet advised.
Now one of the sisters, Stevie, is obviously pregnant. We contacted the vet, who said the neuter was successful but that this could possibly happen ONCE. Ugh. Gotta love those "possibilities."

Anyways, Stevie is fine with the rest of the girls, but it's her momma Po that is flipping out! She's secured the same play house she built a nest in before and spends pretty much the entire night carrying litter up to the house, she brought 2 bowls of food in there, and shredded 3 hammocks (they're in there as well). The nest is MASSIVE. She doesn't seem to spend a lot of time in there tho, and Stevie isn't all that interested either. It's just a giant empty rat nest.
Anyone have thoughts on Po's behavior? I'm assuming she senses Stevie's pregnancy, I don't know if she's building a nest FOR Stevie, or if it's a false pregancy thing with Po? Or something else entirely? She's usually not a hoarder or nest builder, the only other time we've ever seen her do this is when she was very pregnant (and she is NOT now).