I was just wondering, is it important for hens to be with other hens? I have just 1, I used to have 5 hens but 4 were killed by preditors and 1 was alive in the morning when I went out to feed them, then later in the afternoon she was dead!? I found her inside the coop. Now I have just one surrviver. Should I get her at least one hen friend? And if I do should I get one thats around the same age as her?