No, they are not real.
Thunderbirds eat whales mostly.
Thunderbirds!
Thunderbirds are mythical creatures in Native American folklore, described as large, bird-like beings with supernatural powers. There is no scientific evidence to support the existence of thunderbirds as described in folklore.
Vanessa Hudgens plays Tintin in THUNDERBIRDS the movie. THUNDERBIRDS ARE GO
Brains - Thunderbirds - was created in 1965.
Carolina Thunderbirds was created in 1982.
Seattle Thunderbirds was created in 1977.
The Production Budget for Thunderbirds was $55,000,000.
Toyama Thunderbirds was created in 2007.
Vancouver Thunderbirds was created in 2005.
The Fabulous Thunderbirds was created in 1974.
Albuquerque Thunderbirds was created in 2005.