[quote=Minarawr]
Hmm, thats a bit hard though. Unfortunately the cockatrice doesn't have any more particular defensive or offensive attacks. Hard hits deal massive damage and they have no enhanced speed or strength to fight back. Otherwise I'd have to make stuff up for it, but that's less accurate.
[/quote]
We have bipedal dragons, as well as golems and such. Even slime, which I DEFINITELY had to make up.

So, just come up with something that fits the cockatrice.

[quote=Minarawr]
And why should I change the species, actually?
[/quote]
Because we really don't know what to specifically classify it as.

In fact, it's recommended you give a description of the character's species BEFORE you make the app.

Although, I will admit I'm a bit annoyed at Lugia for denying certain powers out of OPness. Otherwise, I'm rather neutral when it comes to this.

The most I can suggest is that you tone down paralysis. Maybe to stunning or slowing levels.