I posted about my broody girl becoming so weak and no longer able to walk... thought is was merricks, but had her stool tested and found roundworm and another type of egg... That's what's sucking the life out of her! Being broody make her not strong enough to fight off or deal with worms. Many chickens can naturally deal with them unless under distress. Tomorrow I'm off to get the wormer! And have ordered a more natural treatment online that will come in a few days to treat my whole little flock (7) without having to throw the eggs away! I hope this helps someone else in a similar situation!