New & Definitive Thunderbird Documentary

In this video, I will discuss the prehistoric Thunderbird, historical sightings, modern sightings and encounters, a contested video clip, what “large" really means for a bird, and finally, a range of explanations.
The theories range from the zoological, cryptozoological, and paranormal.
Support! Help me pay for illustrations: paypal.me/BobGymlan
Illustrations by Fred Dunn!: www.youtube.com/user/dredfunn
#thunderbird #cryptozoology