Yön siivet was released in the year 1979。Yön siivet is also called as Nightwing, Schwingen der Angst, Nocne skrzydla, Ali della notte, Alas en la noche。

A colony of vampire bats terrorize a small Indian community in New Mexico. Standard "Nature goes berserk" plot turns extra hokey toward the end when supernatural forces are discovered working through the bats.

Yön siivet actors and actresses include Kathryn Harrold, Nick Mancuso。