botanical names of....:-

1. penguin
2. vulture
3. parrot
4. pigeon
5. crow
6. peacock
7. any 3 poisonous snake

These should be zoological names as you are asking about animals.
1. Penguin: Aptenodytes patagonicus
​2. Vulture: Gyps bengalensis
​3. Parrot: Psittacula
4. Pigeon: Columba livia
​5. Crow: Corvus splendens
6. Peacock: Pavo cristatus
​Three poisonous snakes are Naja naja (Indian Cobra), Bungarus (Krait) and Vipera (Viper).