This video from Bermuda says about itself:
Closeup On Sunny The Cahow Chick – May 18, 2018
Only a couple of weeks remain until Sunny heads out to sea!
The young bird has likely reached his peak mass of over 400 grams, and is now slimming down (334 grams at most recent health check) before fledging. Here, he shows off just how much down has sloughed away in his transformation into a handsome juvenile.
The CahowCam is a collaboration between the Cornell Lab of Ornithology and the Nonsuch Expeditions. You can watch the cam live at http://allaboutbirds.org/cahows and learn more about Nonsuch Island‘s environs (including the cahow) at http://nonsuchisland.com.