Yesterday (2.10.18) there was a NORTHERN PYGMY-OWL at the end of 220 th St NE in Snohomish County. This is accessed off of 7 th Ave NE off of Pioneer Hwy E, a short distance west of I5. (SE of Silvana)
As I watched this bird it stood straight up and shrunk its body to a diameter much smaller than its unshrunken head . The size of the shrunken body was a fraction of normal. The bird looked very odd! The process took but a few seconds, after which the bird immediately returned to normal dimensions. The bird remained perched in the same place for several minutes after the “shrinking”. Unfortunately, I was not filming at the time. Whether this was concealing or revealing behavior, I cannot say. I was quite distant from the bird. There could easily have been another bird which posed a threat that I did not see.
If anyone reading this has had a similar experience with a Pygmy-Owl I would appreciate hearing about it.