Tara Tanaka (Vimeo page here, flickr page here) was so stimulated by some of the comments on her recent video—remarks about why a fishing egret would bob its head and neck—that she produced a new one, also showing a piscivorous bird (an American bittern) swaying its head and neck. I asked her how she thought this behavior was adaptive (if it is), and she replied: “I did some very minimal research, and it’s said to imitate grass swaying in the wind – which makes perfect sense for the Bittern; however, it seems to me that the Great Egret may be trying to distract the prey with the movement of its very visible neck, but that’s just my 2 cents.”
Here are the Vimeo notes; be sure to watch with sound on and the video enlarged:
I had so many comments on the way that the Great Egret moved its head and neck in the Great Backyard Bird Count video that I decided to reach back into some five-year old American Bittern footage that I’d been meaning to edit to show the master of bird swaying.
I regularly change the speed in my videos depending on what effect I’m trying to achieve, but I did want to mention that the flight scene at the very end was slowed down by 50 percent. The Little Blue Heron actually flies at the speed depicted in this clip, but the American Bittern has a very fast wing beat, twice as fast as in this video.
By the way, I’ve also discovered that Tara has a pair of cowboy boots, which are nice ones. Here they are, along with her omnipresent binoculars: