Animagus

[jazmyn]

No: HPFGUIDX 79300

I have a theory on animagus.  I believe a wizard with any reasonable 
skill in transfiguration can turn into any animal they have practiced 
at.  What defines an Animagus is the ability to turn into an animal AT 
WILL, meaning without a wand.   With a wand, they could turn into other 
kinds of animals, but the animal form they are most specialized in, is 
their 'animagus form' and they can switch back and forth between this 
form at will, with or without a wand.

Please note that Sirius was able to take the dog form thus, at will. 
How do I know this?  Because he DID NOT HAVE A WAND IN AZKABAN!  To use 
his dog form to escape Azkaban, he had to be able to change without a wand.

If you can transfigure all sorts of things into other forms WITH a wand, 
then there's little to stop you from changing yourself into any form 
WITH A WAND.  Though I suspect that animal forms taken with a wand (or 
potion.. or a Weasly Wheezes Product even) have a duration and 'wear 
off' after an hour or so, where an Animagus form can be maintained 
indefinitely.

Thus why animagus have to register is because even if they have no wand, 
they can take their animal form.  Makes it hard to lock them up.

Jazmyn