The lovely chickens who have joined the suburbanite farm are Henrietta, Penelope and Adelaide. They are Light Sussex pullets of about 15 weeks old.

Henrietta is definitely on the left. It's hard in this photo to tell the other two apart but I think Penelope is in the middle.
Adelaide may actually be a cockerel, we aren’t sure yet, but she/he definitely seems to be the leader of the group.