| Answer | Crossword Clue |
|---|---|
| RHEAS | Largest of So. American birds. |
| OSTRICH | Largest of existing birds |
| OSTRICHES | Largest birds |
| ALBATROSSES | Largest sea birds. |
| EMUS | Australia's largest native birds |
| EMUS | Largest birds in Australia |
| EMUS | Second-largest living birds |
| EMUS | Second largest existing birds. |
