Yes Gerty, The eyes are further apart in the Powerful Owl is much much bigger, striated head, big chest, compared to the a Barking Owl. Compare the two below. Gary took the powerful owl near our place.
Thanks Glenda. Yes, can see the difference now. I hunted down a photo of a powerful owl I took near Buchan Vic, theyre quite different when you compare them. Also the powerful owls feather markings are crosswise as opposed to the lengthwise barking owls markings.