I agree with Ang that the scenario of two seer's (or one true, one false) would be quite drastic. Even though Diamond didn't confirm that query.
But think about this. If you come forwards with an Owl-claim on DAY2, you need two dreams too - and they should be right. Now as I know my ordoness in this game, I know she was right in one of the two - and I tend to believe her on Spm too. But how about Glirdy? He gave us a duck (it takes a duck to no another...
), but his other revealment? Spm, already revealed by Mith!!! That would be safe-play by a duck trying to look like an owl and to go to the end of the game (he cuold go on revealing anyone he likes from the point of Miths death onwards, because he is the only duck around - and we would just think Mith's ordoness being goosyness).
That's the only reasonable scenario I can come up with at present.
I'm having a busy day, but try to come in later on with more thoughts - if I get some...
And I'm so sad that Roa eventually decided to leave - and Sleepy too. And Cailin out for two days? Hmmmm...