On the Big Island, we see them in certain spots regularly. They hang out on the fence posts on the Saddle Road (Between Hilo and Waikoloa - on the Waikoloa side. I also had a barn owl on my property recently.
Here are links - the first to 3 owl shots and then a composite of pueo's from the Saddles Road. They are really hard to get sharp.
http://www.pbase.com/rickdecker/new__images
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