"I can't stop you from hunting eagle stones or thunderbirds."

Traditional European magical-medicinal accounts refer to Eagle Stones, also called Aeites, it was believed the stone could promote childbirth.

Thunderbird on Totem Pole
GNU Free Documentation LicenseThunderbird on Totem Pole - Credit: Dr Haggis
In Native American cultures, Thunderbirds legendary creatures, considered powerful and strong. The beating of their wings was said to cause thunder and some believed they could shoot lightning from their eyes.