Yeah, they feel empathy for their chicks...that's why they'll abandon ones that are unhealthy and handicapped. I have a few chickens who are pets, definitely friendlier than the majority and I adore them. I even taught my rooster, Spartacus, to jump up and take food out of my hand, but they operate on habit and instinct. The broody ones are great mothers but the majority of them lay their eggs, get up from the nest and don't ever think of them again. Even the good mothers will chase them away when they've reached a certain size. Some roosters will stand by their favorite hens while they lay but mostly that's because they're hoping to get a little when she hops out of the nesting box.
Cindie