Animals from class Aves are warm-blooded.
These are the gill-bearing vertebrates which lack limbs with digits. They are the aquatic craniate animals generally called fishes.
These are the tetrapod vertebrates which may either have four-limbs or they are descended from four-limb ancestors like snakes.
Amphibians can live in aquatic as well as in terrestrial habitats and most of them have two pairs of limbs.