On Sat, 7 May 2011 18:46:26 EDT, Jim wrote:

I have seen the bird 3 times., The berm pond seems empty. It has not
got anything I can see from the main pond. It has got to go.

Not sure what got to go means, and/or what your landscaping is like, but
the threaded fishing line along the top of the fence and over the pond from
fence to deck has kept them from coming back for a 2nd helping here.
~ jan
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Zone 7a, SE Washington State
Ponds: www.jjspond.us