Lead Poisoning

[Wolf]

Lead poisoning in the Kea Parrot; http://news.yahoo.com/brainiac-parrots- ... 00519.html The effects of lead poisoning on Kea parrots may have effects far beyond what was previously thought with interference in their intelligence being only one of the serious effects that has been observed.
While this article is done on wild Kea parrots one should take note that lead poisoning is most prevalent among birds living in proximity to humans and this form of metal toxicity is not uncommon among our companion parrots, we should therefore take special note of all of the symptoms that are described in this article as well as doing further research on our own into the effects of this on our own bird buddies.

[Pajarita]

Indeed! An inordinately large number of pet parrots suffer from heavy metal poisoning for lack of prevention and the first symptoms always seem to go undetected so here it's a very comprehensive article on it:

http://beautyofbirds.com/heavymetalpoisoningbirds.html