I have been loosing a lot of young birds to a disease.. but don't know what it is. So far around 10 birds.
I have several breeds housed in the same coop.. but its only affecting one breed. Its been going on for several months now.
Here is what typically happens.....
1. Parents raise their squabs well.. squabs fat and healthy and leave the nest.
2. Young become independent and do well at first.
3. Several weeks after independence the young bird will suddenly die!
I can tell when one is going to die because it will become less active a day or 2 before... and it stops eating and drinking.
There are no crop problems and the birds were a good weight up till a few days before they die. The dropping are normal.. but once they stop eating they become small and green and there is a slight amount of green staining around the vent feathers.. but its a very small amount.
I have also lost 2 squabs in different nest... one day they are healthy.. the next day they were dead with lots of yellow poop stuck around their bottoms.