I do think that Ranchhand brings up a valid consideration. From my point of view, it is not so much whether a chicken is considered an indoor pet or an outdoor pet. After all, dogs are pack animals and on many farms they were not considered inside pets until recent decades. The question is whether we can provide an environment for the animal that satisfies their psychological needs as well as physical needs. The dog gets their psychological need for the pack met to varying degrees through their humans. We have all heard of dogs that have adjusted well and others who have behavior problems because they have not.
So the question for a pet chicken is how well will the environment meet her natural physical and psychological needs? I can only draw from my experience raising my Silkies as a duo. They were used to life without a larger flock from a fairly young age, and even when they got a coop outside they did not join the larger flock and they seemed content. But when one of them died, of course the one left behind was lonely. But I don't really know how that applies to Nellie's situation.
That's why it would be helpful to hear more from people who have kept a chicken in a similar situation.
So the question for a pet chicken is how well will the environment meet her natural physical and psychological needs? I can only draw from my experience raising my Silkies as a duo. They were used to life without a larger flock from a fairly young age, and even when they got a coop outside they did not join the larger flock and they seemed content. But when one of them died, of course the one left behind was lonely. But I don't really know how that applies to Nellie's situation.
That's why it would be helpful to hear more from people who have kept a chicken in a similar situation.