Hi Jason, welcome to the forum!
there are 4 species of vultures in Spain, one being prolific and the others more scattered or rare. Here are their names to start you off,
Griffon vulture (English), Gyps fulvus (Scientific), Buitre leonado (Spanish)
Egyptian vulture (English), Neophron percnopterus (Scientific), Alimoche común (Spanish)
Black vulture (English), Aegypius monachus (Scientific), Buitre negro (Spanish)
Lammergeyer or Bearded vulture (English), Gypaetus barbatus (Scientific), Quebrantahuesos (Spanish)
more to follow, regards Sue