MYSTERY BIRD QUIZ #2

Hello Folks,

Here's something for all you fans of our feathered friends. Each friday for 12 weeks, I will be posting a little teaser for you. Without looking in books or on the internet (i.e - no cheating), see if you can identify this bird. The following Monday, so as long as no-one has guessed it, I will post one clue. The day after I will post the answer along with some additional information for your interest.

Here goes ....

MYSTERY BIRD #2
I boom and I lek where the clouds are long and white.