[Bagor]

^ Alberta has 16 species of owl.
http://en.wikipedia.org/wiki/List_of...f_Alberta#Owls

Originally Posted by troutman

This is a great app for birding:
http://iphone.ibird.com/About_Canada.html

Cornell has just finished their free bird app.

http://merlin.allaboutbirds.org/

I'm not sold on great horned owl. I watched one all last Spring on the nest and this one looks quite a bit smaller not to mention the horns (tufts) are VERY distinct and prominent.

Also worth considering that it is out and about in daytime leans me a bit towards guessing short-eared. http://en.wikipedia.org/wiki/Short-eared_Owl

Great horned is nocturnal.