The disturbed bird decided that is is too dangerous to carry this bug in its feet, and it is better to get rid of it quickly. It threw its feet before itself and upwards, unclenching the claws, which made Toothless fly up in a daze, and opened its beak right below the tiny Night Fury.
Toothless, now quickly falling down, with his feet facing the sky, turned his head back, to see why the bird did it, only to get a view of an enormous waiting beak of the Swallow ready to take him, and swallow down the gaping gullet. He stretched his wings wider to slow his descent, but it was too late, as he felt his back make contact with the bird's wet tongue, which he brushed in his fall, and then slowed down, already fully inside the beak. Except for his tail, which he didn't tuck in in time, before the beak closed, and felt an intense pain in, as it got clamped between the upper and lower parts of it, threatening to bite it off.
The bird, with Toothless' tail sticking out of its beak, landed on the closest tree branch, and gulped down some more times to force its prey down the gullet. As Toothless' tail disappeared inside the beak, and then a lump of his body travelled down the swallow's short neck, it felt satisfied with its catch, not knowing that what it has just swallowed was not a bug, but maybe the most powerful dragon in the world, in his most fragile and humiliating state ever.