Dumbledore an animagus?

[milz]

No: HPFGUIDX 4273

This is just a thought, but considering Dumblebore was the 
Transfiguration Teacher, could he also be an un-registered animagus? 
There's a part in SS that's always puzzled me...Harry tells
Dumbledore 
that they sent an owl to him in London. Dumbledore replies that he 
didn't get the owl and that they must have passed each other in the 
air (or something like that). I thought at first Dumbledore was 
traveling via broomstick, but wouldn't he have noticed the owl? Also, 
'dumbledore' is an archaic word meaning "bumblebee".

:-) Milz