Supposed they have used a pneumatic cannon with bird carcasses for testing purposes and Mythbusters tried it with a frozen and non frozen IIRC, though this says

Supposed they have used a pneumatic cannon with bird carcasses for testing purposes and Mythbusters tried it with a frozen and non frozen IIRC, though this says clay works just as well. https://www.snopes.com/fact-check/catapoultry/ https://www.snopes.com/fact-check/catapoultry/