article_snippet.sent: Before the video maker began lifting the video maker head all the way back and opening the video maker mouth extremely wide to show off the size difference between the two parts of the video maker beak.
article_snippet.sent: the bird then closes its mouth while looking up at the sky and the air sacs in the bird throat begin deflating once again as the bird settles back down.
article_snippet.sent: But the bird shows the bird has one more trick up the bird sleeve as the bird rolls the bird head right back, opens its mouth again and inflates the bird air sacs.
article_snippet.sent: The video concludes with the bird returning to the bird original position and continuing to look over the water as if nothing ever happened.
article_snippet.sent: the bird lifts the bird head all the way back and opens its mouth to show off the size difference between the two parts of the bird beak .
article_snippet.sent: the bird rolls the bird head right back, opens its mouth and inflates its air sacs to expose the bird tongue and some inner bill anatomy .