Natural gas leaks can cause sudden death in birds. Any type of heater, used improperly or with inadequate ventilation can be deadly to birds. Carbon monoxide, an odorless, colorless and tasteless gas, can also be fatal to birds.
Matzo Bread is the key ingredient for Matzo Meal. It is made by mixing flour (barley, rye, maize, oats, or spelt) and water. Later the hard dough is rolled, cut into square shapes and baked at high temperature.
Finally, since the manufacturer makes no mention of what the grill mat is made of, I did some research. Turns out- grill mats are sold under a number of brand names that are widely available. And many are made of fiberglass coated with PTFE, which stands for polytetrafluoroethylene - also known as Teflon.