You were right, it’s not the same species as the other eggs. So if it’s not a dragon, what is it?

And look, it’s gotten bigger! Maybe it will reach its full size soon.

Ilve is certainly not a dragon. It remained a small little thing, always playing around with the hatchlings, and although it is not the same species as the bigger dragons, it's kind of the herd's little brother. Its mischievous deeds, never malignant, always bring back the smile on people's faces. It was the first to greet their owner when she came back from a years-long absence, and she's particularly fond of it ever since.