I was finally able to see the two young Great Gray Owls at the Zoo the other day. I saw them when they were very tiny, but then the aviary in which they live was closed to the public for a few weeks, due to maintenance problems. It was very obvious which were the two immature owls, as they still had quite a lot of downy feathers (not really noticeable in this particular photo). Both were in different trees close to the narrow path that goes through the aviary. This is one of my favourite parts of the Zoo, being able to see a Snowy Owl, several Great Gray Owls, a Barred Owl and (if you can find it) a Long-eared Owl. No barriers between the birds and you, which is an amazing feeling.