The 'Skulker'

Slow moving & secretive, the yellow-billed cuckoo is sometimes called the raincrow because its song is often heard just before thunderstorms or summer showers. But this rare bird raises its voice less and less often in eastern North America and has been entirely eradicated from most of its riparian habitat west of the Continental Divide. Currently, 95 percent of western yellow-billed cuckoos have been extirpated due to logging, water diversion, and suburban sprawl. As few as 40 breeding pairs may be all that remain in California..
F/7.1, 1/200th, ISO 640, 1D M3, 300mm f/2.8 + Kenko 2x ext. @ 8:41am on July 31, 2013. Info courtesy of the "Center for Biological Diversity".