What is a small seagull called?

There isn't a specific term for a "small seagull" like there is for a baby bird (chick). Seagulls are generally categorized by species, and their size can vary significantly.

For example, you might have a:

* Least Tern: This is a small seabird, often considered a seagull, but it is actually a tern.

* Black-headed Gull: This is a smaller species of gull, compared to the larger Herring Gull or Great Black-backed Gull.

So, to accurately describe a small seagull, you'd need to identify the specific species.