Hello, Sandra, welcome to Backyard Chickens! Congratulations for becoming part of the flock!
I'm sorry to hear about all of your previous losses. I am no expert when it comes to sicknesses but it sounds like your one chicken had a respiratory issue. It was definitely wise to have her culled, if the disease was contagious it would have likely spread and would of affected the entire flock.
I'm sorry to hear about all of your previous losses. I am no expert when it comes to sicknesses but it sounds like your one chicken had a respiratory issue. It was definitely wise to have her culled, if the disease was contagious it would have likely spread and would of affected the entire flock.