Heather and other interested tweets,
I'll save Matt Bartels an email message and respond to why Horned Puffin, Blue-footed Booby and others are on the "potential list for Okanogan County" in Matt's county project. All county compilers are given the same list (its the State list) so that when Matt adds the lists together it makes his job of copying the lists together for compilation much easier. So those species are on the State list, but not on the Okanogan County list as you mentioned. Heather as you mention, you never know on some of the birds. Inland lakes have been known to turn up some wacky stuff before so none of them is impossible.

Scott Downes
downess at charter.net
Yakima WA