Interesting facts about birds
Birds are a group of warm-blooded vertebrates constituting the class Aves, characterized by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Wikipedia
Scientific name: Aves
Higher classification: Ornithurae
- There are around 18000 different species of birds worldwide.
- There are around 10000 different species of birds Asia.