The fact is, only 3 men we saw Jane shaking hands from the 7 suspects:
Bertram, Haffner and Kirkland. At the 5x08 Lorelei told Jane about the handshake, that was really big clue! Sophie Miller said, Mr. Roth has short,
straight hair, well pleasant appearance and he has some kind of phobia.
She also said, Mr. Roth is mid 40 ages. We got the biggest clue now next to the handshaking, that's a phobic!!!
Yes, I agree with you, probably Red John has an ornithophobic. At the beginning of the actual episode Patrick said: "Maybe something spooked him and he couldn't go through his usual routine."
I don't think RJ fear from the 666 number, but this is the alternative possibility, beacuse that is also kind of phobic (Hexakosioihexekontahexaphobic).

Bret Stiles, Sheriff Thomas McAllister, Reede Smith are out of the picture, because they didn't shake hands with Jane before. Sheriff and Stiles over than 40 years old by the way. Bertram hasn't got a short, straight hair and he responsibe for get information the Red John investigation (said Smith).

So, only left 2 suspects: Kirkland and Haffner. We heard whistle Ray Haffner, therefore my guess he is Red John. But, I'am absolutely sure Haffner or Kirkland is Red John!!! One of them, believe me, this is 100%!!!

Please, think it over and don't hurt me :))
I think, my theory isn't bad and based on logical, connected information