I have had my birds for less than a year, most are just now starting to lay, wide variety, but over the last few months i have been losing a bird a week, a few days go by and another one takes ill, I separate from flock and within 48 hours they are dead as well. i can tell immediately because they are standoffish from the other birds, slow, wont leave coop without coaxing, basically lethargic, eat and drink fine, but eventually can't stand and die within the 48 hour time line. No Vets around here handle or advise about poultry. I hate to cull all my birds but I am thinking they are all going to die eventually. I currently have 2 quarantined, the 3rd passed this morning.