Just found this thread... and made me think "How many I've seen, really?". I know I do dreadfully with Owls, even if I love them... and now I realize I did even worse than I thought, this is my list after birding for 32 years!!! :eek!:
1. Tawny Owl (Strix aluco) Spain 1979 (I saw my first Owl ever when I was 11, how tender, sigh, |=)|)
2. Little Owl (Athene noctua) Spain 1981
3. Barn Owl (Tyto alba) Spain 2001
4. Barred Owl (Strix varia) Florida (USA) 2002
5. Burrowing Owl (Speotyto cunicularia) Florida (USA) 2002
6. Ferrugineous Pygmy-Owl (Glaucidium brasilianum) Costa Rica 2006
7. Bare-shanked Screech-Owl (Otus clarkii) Costa Rica 2006
8. Short-eared Owl (Asio otus) Spain 2007
9. Eagle Owl (Bubo bubo) Spain 2009
and heard Common Scops Owl (Otus scops) many times but I've been unable to locate it so far, sniff, :-C...