Bird feces do not contain toxoplasmosis.  Only members of the cat family shed toxoplasma gondii oocysts (eggs) in their feces.  No other animal does.  Toxoplasma gondii can only complete its life cycle in the intestine of a cat.  Each infected cat sheds the microscopic oocysts in its feces by the tens of millions.  It only takes one oocyst to become infected.  Any warm-blooded animal can become infected, but only cats shed oocysts.