If you watch any interview with him when the subject is about wildlife or nature in general he comes across as a completely normal chap. But when those interviews are about The Goodies or comedy, he turns into a right oddball.
A friend of mine was a warden of a reserve that Springwatch was filmed at when Oddie was on it. He said the same, he got on fine with him as they are both bird experts, but he had a freak out when someone mentioned the Funky Gibbon*
*I can't remember the details.
Packham was very pleasant but would fuck off as soon as it was finished whereas the others would socialise. Fair enough though, he wasn't horrible about it.
Oddie is a good (bird's) egg in my eyes, hope he recovers soon.