Slightly larger Dove and Raven pets?

I was lucky to get both of these great pets from the newest mystery boxes. I will be using them for sure but I feel like they could do with a little enlargement. Maybe it's because they don't have any glow effect or other frills, but they seem like they are the smallest of the flying pets released so far (looking at, say, the Golden Parakeet or even the various fireflies).