Karkaroff...an animagus??

[barefootpuppets]

No: HPFGUIDX 45573

Hello All,

I was re-reading Book 4 (again) and had a thought...

Learning to be an animagus is hard work and requires oversight.  Was 
Krum assisted by Karkaroff?  In Book 4, as Krum and Harry are 
conversing by the edge of the forest and see Crazed!Crouch, there is 
a brief mention of a silvery coloured bird looking though Hagrid's 
window.  Karkaroff is always referred to as "wearing silver-fur 
trimmed coat"...could it be that Karkaroff is an animagus?