Must be just out-of-the-nest. Caught the Mom/Dad going to this same willow tree and finally spotted the reason. This one was sleeping during my photo session.
Best viewed in 'original' size.
NIKON 1 V3 with FT-1,AF-S VR Nikkor 70-200mm f2.8G 1/800s f/4.0 at 540mm iso800
UnCropped but Resized with Reduced pixels for Internet Viewing
full exif