My favourite of all was the little American kestrel - weighing only 4 ounces and half the size of our own European one.
When C went last year, this was one of the birds that they had out , and some of the Harley riders posed with it. This photo gives a good idea of the size of it. I thought I had a better photo which somebody else had taken - all C had with him was a little point and shoot - but if I do, I can't find it.
I'll be back with some owls...