Hello there and welcome to BYC! 
It's easy to worry about your birds and all those nasty diseases you mentioned. They do happen to our birds. But many things can be prevented through good hygiene in and around the coop, good diet, probiotics and just watching them enough daily so that you can tell when one of them is a bit off. If you catch things early enough, they are so much easier to treat and heal.
Enjoy your flock and welcome to ours!

It's easy to worry about your birds and all those nasty diseases you mentioned. They do happen to our birds. But many things can be prevented through good hygiene in and around the coop, good diet, probiotics and just watching them enough daily so that you can tell when one of them is a bit off. If you catch things early enough, they are so much easier to treat and heal.
Enjoy your flock and welcome to ours!
