We're pretty sure don's bird is a Sharpie, too. Forget the rounded
vs. squared-off tail business (we all grew up with Peterson, but his
distinguishing marks aren't too helpful), the best key to differentiate
between Sharpies and Coops is head size. Sharpies are pea-headed and
neck-free - Coop's have a good sized head and a distinct neck. The bird in
Don's picture is definitely micro cephalic.
Larry and Mona