Occoquan Bay NWR; sneeking around in a low oak brush area in bad lighting.
Not a real good looking bird are they(?) And no, I don't know what the white lump is.
Best viewed in 'original' size.
Nikon D800
,AF-S VR Nikkor 70-200mm f2.8G with TC-20 E II 1/320s f/5.6 at 400.0mm iso2500
Free Crop and Reduced to 180 ppi for Internet Viewing
full exif