Here's an example of a still head and a moving body of an Eastern Red-tailed Hawk:


https://flic.kr/p/2n4HutZ


Marv Breece
Tukwila, WA
marvbreece at q.com

....that the elected might never form to themselves an interest separate from the electors ...
- Thomas Paine, from Common Sense




On Sat, 28 Dec, 2024 at 11:44 AM, Dennis Paulson via Tweeters <tweeters at u.washington.edu> wrote:


To: tweeters tweeters
This explains why chickens and pigeons and coots and other birds bob their heads as they walk. They stabilize-move-stabilize-move-stabilize-move the head as they walk, while the body keeps a steady forward pace Presumably this is to give them the best vision of their surroundings.


Dennis Paulson
Seattle




Begin forwarded message:





https://youtube.com/shorts/O0hxDxIk0rM?si=ioHAcBaLb5P5ElGT