Crossword Genius

Birds - they pick up heavy weights (6)

Ross

I believe the answer is:

cranes

I'm a little stuck... Click here to teach me more about this clue!

'birds' is the definition.
(crane is a kind of bird)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for cranes that I've seen before include "demoiselles" , "Lifting machines and long-necked birds" , "Makes an effort to see" , "Lifting machines and wading birds" , "Long-necked wading birds" .)

Want a hint initially instead of a full solution? Install my app