| Answer | Crossword Clue |
|---|---|
| LAYEGGS | Birds and platypi do it |
| MOLT | Birds and snakes do it |
| MOLT | Snakes and birds do it |
| AVIATE | The birds and bees do it |
| FLY | The birds and the bees do it |
| CHIRP | Birds do it |
| PREEN | Birds do it |
| FLY | Birds do it |
| LAYEGGS | Birds do it |
| NEST | Birds do it |
| TWEET | Birds do it |
| SING | Birds do it |
| WARBLE | Birds do it |
| ROOST | Birds do it |
| SOAR | Birds do it |
| FLY | Birds do it, bees do it |
| MIGRATE | Birds do it; whales do it |
| AVIATE | Birds do it bees do it . . . |
| MOLT | Many birds do it once a year |
| LARKS | Birds that do things just for the fun of it? |
| BEES | "Birds do it, ... do it, even educated fleas do it" |
| FLEAS | "Birds do it, bees do it, even educated ... do it" |
