It's always a treat for me to see a Red-necked Grebe and last Saturday there were several in nearly complete alternate plumage along the S. Jetty in Newport. For a while, they seemed to be actively feeding near the middle of the channel but eventually they moved closer to the jetty spending more time on the surface and in paired combinations. What followed were intermittent episodes of display behavior - neck extensions/bobbing, head shaking, coordinated rushing across the water (though not quite the degree of 'dancing' by Western Grebes.) There were other odd movements, poses and behaviors, too. I strung together a few photos illustrating some of these poses. https://www.flickr.com/photos/10665268@N04/33320947183/in/photostream
I'm wondering if the neck/head poses and the open-wing poses are known display behaviors, too. How common is it to see these grebes displaying in Oregon before they depart for their breeding grounds?