Seal

Seals are animals that appear in The Angry Birds Movie 2 and Angry Birds Friends!.

The ones that appear are cubs, they have white fur, a black snouth, large eyes with large pupils,  two fins on the front and fins at the end of their bodies.

The Angry Birds Movie 2
The seals appear in some parts of the movie, in Eagle Island. One of them steal Zeta's fish, then the same one steals Baby's dog food and then probably the same one is eating fish with Baby, her love interest.

Angry Birds Friends!
They appear in  Operation: Eagle Island Tournament where they can be collected, they doesn't give a large number of points.