Given a description, classify whether it is a mammal or not.
Output: "Mammal" or "Not a Mammal"
A small black and white bird with a long beak
Not a Mammal.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given a description, classify whether it is a mammal or not.
Output: "Mammal" or "Not a Mammal"

### Input:
A small black and white bird with a long beak

### Output:
Not a Mammal.