SULPHUR- CRESTED COCKATOO

We had a visit today from a pack of teenaged thugs...aka sulphur crested cockies.  This is the leader of the pack. I couldn't persuade him/?her to show me his handsome crest.   They have beaks like wire cutters and they have no difficulty cracking a macadamia nut.   Look at the wear on the edges of this fellow's beak.  They are destructive critturs but they have a merry eye, so one can't help liking them.