Hi, I need to know how dangerous is the fumes of teflon cooking pans for birds and iguanas, since I have hem inside my home

What is your question please?

Or silicone.

or silicone.

Can't use silicone on a direct heating surface or it will melt and make a mess.

The fumes from cooking with t-fal or Teflon are not harmful to your animals. If the non stick coating starts to lift, then you will need to buy new pots and pans. It's not healthy to consume. ;)