A Serendipity Shot

Supper was simmering on the stove and with a few minutes to kill, I decided to sit on the back deck and play a short game of Spider Solitaire on my smart phone. A soft thump over head caused me to wonder what had fallen on the deck roof and then over the top of my game I noticed "big bird", big white bird, come gliding down near the water garden. It's gaze was on the water and for 15 minutes it pondered the water, with its gliding walk, back and forth and finally up on the edge of the pond. My game was easily switched to the camera function of the smart phone by now and I clicked away 10 feet from the bird. It slurped up one of our recent additions to the pond, a 29 cent carp, looked around again never seeming to notice me and finally rose off in the air. What a moment - couldn't believe I had a "camera" in my hands. Clay thought my pictures were Photoshopped. He was just piqued that I dared not call out to him while our pond visitor was there.
BTW - Can you identify "Big Bird"? Comment and I will let you know if you got it right.