User blog comment:Megadracosaurus/Night Fury Theory/@comment-24990845-20151121051533/@comment-24018437-20151121100933

True. But here's come's Toothless being the only example of his species in again: If we just look at Toothless, that is the most logical conclusion. But we don't know if the Night Furries as a species are also adepted to function good on land. The official website once stated that Night Furries were clumsy on land. Its possible that Toothless, because he was trapped in the Cove, adapted to being on the ground,

Nevertheless, while I consider it a possibility, I do agree that its probably unlikely Night Furries live as Sooty Terns. Also, I looked it up. Its indeed a Swift I was talking about, or 'Gierzwaluw' as well call them here. Gierzwaluw, btw, translates to Vulture Swallow.