differ. between amphibians and aves?

Amphibia- cold blooded animals.
3 chambered heart.
found in both land and water.
respiration through lungs and gills.
legs are used for movement.
eg-frogs,salamanders.

Aves- warm blooded animals.
4 chambered heart.
2 forelimbs are modified for flight.
breathe through lungs.
eg-pigeon, ostrich.