Magnificent Frigatebird, Fregata magnificens

Great Frigatebird, Fregata minor 

(I am unable to distinguish between Magnificent and Great Frigatebirds, these were taken in South America.)
Frigatebird
Frigatebird preening ,The Galápagos Island, Ecuador, South America
 
Frigatebird
Frigatebird in flight,The Galápagos Island, Ecuador, South America