What are the key features of birds?

Answer 1

Birds are feathery and can fly. They have beaks and their eyes are sharp, especially carnivorous birds, like the bald eagle, vulture, falcons, etc. They have talons which enable them to grasp almost anything. The shape of the beak each bird has allows it to eat. For example, if a bird has a long, sharp, slender beak, it is for catching bugs. If a bird has a fat, short beak, it is for cracking seeds. It all depends on what the bird wants to eat.

The inside anatomy of a bird is quite fascinating. Did you know that if birds had teeth, they wouldn't be able to fly because teeth are too heavy?

The BASIC bird digestive system, from start to finish:

1) Mouth

2) Esophagus

3) Crop

4) Gizzard

5) Small intestine

6) Large intestine

7) Cloaca

Hope this helps! :D
Birds (class Aves) are winged, bipedal, endothermic (warm-blooded), vertebrate animals that lay eggs.
Some of the more obvious are:- Feathers, Wings, a beak, two legs and most (but not all) can fly, they also lay eggs.

Answer 2

Birds are endothermic vertebrates that have a 4 chambered heart , 2 lings , multiple air sacs , hollow bones , 2 types of feather - contour and down, a strong beak , a crop or storage center , and a stomach with 2 sections - they also have claws and other adaptations

Answer 3

The wings are one because it make birds fly