Toothless looks to the puppies and their attempted climbing of Hiccup, who is a much more difficult target, and makes a questioning sound. They'd probably like fish, he imagines. Terrible Terrors do, and they're... more or less the same size. (More, but the dragon isn't exactly the best judge.)

He can provide fish. They'll need some nourishment, anyway. Given how many puppies are in Wonderland, at the moment, Toothless wonders how they're all going to be fed. Or will they turn violent when hungry? A swarm of these fuzzy creatures would be a little more concerning, at least for the vikings. There are a ton of them and more always seem to appear, whenever Toothless is indoors.