Petroglyph:
Boreal Owl near Elk Island National Park, Alberta
Petroglyph:
Great Gray Owl beside Trans-Canada Highway in northern Ontario
Petroglyph:
Bare-legged Owl
Petroglyph:
Bare-legged Owl
Petroglyph:
Bare-legged Owl
Petroglyph:
Cuban Pygmy Owl
Petroglyph:
Cuban Pygmy Owl
Petroglyph:
Long-eared Owl
Petroglyph:
Northern Hawk Owl in northern Ontario
Petroglyph:
Northern Hawk Owl, again
Petroglyph:
Hawk Owl
Petroglyph:
Northern Hawk Owl in southern Ontario
Petroglyph:
Snowy Owl
Petroglyph:
Snowy Owl
Petroglyph:
Snowy Owl
Petroglyph:
Snowy Owl in northern Michigan
Petroglyph:
First glimpse of Snowy Owl
Petroglyph:
Snowy Owl
Petroglyph:
Boreal Owl at Elk Island N.P. (Alberta) 1/2
Petroglyph:
Boreal Owl at Elk Island N.P. 2/2
Petroglyph:
Northern Saw-whet Owl in Tobermory, ON.