I ran into a whole family of Barred Owls this afternoon, there was the 2 adults and 3 young Owlets that looked like they had fledged recently. The adults were still feeding the young ones. I was only able to get shots of two of the young ones because they managed to keep hidden very well and always seemed to have a branch or leaf in front of them blocking a clear shot.
Thanks for the kind comments, Owls are my favorite birds to photograph. The Sigma 500 has been very good, for a third party lens I have been quite happy. I got tired of waiting for Sony to come out with their 500 f4 and when they did the cost was just to prohibitive.