Differentiate between flying lizard and Bird.

Differentiate between flying lizard and Bird.
Flying lizard:-
1. It belongs to class Reptilia of phylum Chordata.
2. The animal is cold blooded.
3. Its heart is three chambered.
4. Feathers are absent.
5. Jaws have teeth.
6. It has normal fore limbs.
7. A patagium is present for helping in gliding (Patagium is a fold of skin extending between the forelimbs and hindlimbs of an arboreal animal).
8. Body is covered by scales.

Bird:- 1. It belongs to class Aves of phylum Chordata.
2. The animal is warm blooded.
3. Its heart is four-chambered.
4. Feathers are present.
5. jaws are modified into beak. Teeth are absent,
6. Its forelimbs are modified into wings.
7. A patagium is absent.
8. Scales are restricted to hindlimbs.