Stop using Teflon coated pans, this convenient black stuff is toxic. Heated teflon pans are known to kill pet birds! This is something that has apparently been known for many years, in fact Teflon have to carry a pet bird warning on their packaging. Despite being called safe, this carcinogenic stuff leaches and causes birth defects. It is now in other products too - avoid any hand soaps or plastic containers that say 'Antibacterial' this means they have Teflon in them!
Stick to cooking pots and pans that are stainless steel or cast iron.