Watched this one for quite some time trying to determine if he/she was eating or gathering nesting materials; think eating was the activity.
Best viewed in 'original' size.
Nikon D800
,AF-S VR Nikkor 70-200mm f2.8G with TC 2.0 E II 1/400s f/8.0 at 600mm iso800
UnCropped DX Image at 300 dpi Size Reduced for Internet Viewing
full exif