If the kitchenware is entirely constructed of copper, this should be bird-safe. But they are dangerous for humankind. And, as copper chef pans are made with copper but not entirely, they are safe for both birds and humans.
If you are using copper kitchenware, be cautious not to prepare anything excessively acidic on it, especially if it isn’t coated or protected. Copper has the potential to be exceedingly harmful to people.
Manufacturers frequently include a stainless steel thread to safeguard consumers from this hazard to safeguard consumers. Please notice that these pans must not be used if the liner is destroyed. And if not, you can use them because, in that condition, they will be entirely safe for birds.