How do I know if my parrot has mental disabilities or problems?

[Birdkid]

Title says it all.

 

[camelotshadow]

As long as they eat & poop then I'd say they are OK....

 

[iamwhoiam]

Do you think your parrot is "special needs"? If so, why?

 

[Pockets]

'Mental' as in nervous system related? From what I've read (not recently - apologies for a lack of citation), the inability to perch, balance, twitching can all be symptoms of nervous system disorder/issues. I'm not well versed in this, but let this post serve as a 'bump'

 

[Mizzely]

It would depend on what you are referring to. Physical or psychological?

 

[Mhert]

Self mutilation, extreme phobias causing them to thrash around the cage, other odd and/or destructive behaviors are some big ones.
There are a lot of different complexes? that can be developed, from anything from physical abuse, sexual frustration, round cages, to organ damage and wild hormones because of bad diets/etc and more.

If you want to know anything specific it would be good to have some context.