Someone in our town found a hen wondering the streets. She said she is very friendly but skinny. I offered to take her in if she can't find the owner. Then after I offered I thought I better look into this lol. So I have 2 hens and a rooster they are all about 4 months old and have been together from day 1. I also have 2 ducks -my mallard recently went missing - everyone gets along great. So how do I go about introducing a new friend to my flock? And should I be worried about disease? Knock on wood but everyone has been healthy so far they share a 2 story coop and have free range on the backyard all day (idk if that matters). I'm familiar with rabbits and parrots and introducing new animals with these species is often tricky-im hoping chickens are more accepting. Please share your thoughts!!