No, the characters were "identical cousins". Part of the theme song was: They laugh alike, They walk alike, Sometimes they even talk alike, you could lose your mind! When cousins, are two of a kind!...
Yes. Chickens are social flock creatures. However, if you can't get more than one, just give them lots of attention. They like that. However, they may yet get lonely, but it's your choice. Definitely...