What makes an ostrich different from pigeon?

Answer 1

1. An ostrich is much larger than a pigeon.
2. A pigeon can fly while an ostrich cannot.
3. A pigeon cannot run as fast as an ostrich.
4. A pigeon has a longer tail than an ostrich.
5. Ostriches live in harems while pigeons are mostly monogamous.
6. Ostriches live for far longer than pigeons.
7. Pigeon chicks develop slowly, while ostrich chicks can walk minutes after hatching.
8. Ostriches do not have crops, while pigeons do.
9. Ostriches nest on the ground, while pigeons do not.
10. Wild ostrich populations have declined, while pigeon populations have soared.