Black-crowned Night Heron in flight

An adult Black-crowned Night Heron flies overhead in the Bear Swamp section of Bombay Hook National Wildlife Refuge in Smyrna, Delaware on Tuesday 4-16-2013.  He was part of a flock that kept on flying out of the trees, circled around and then returned to the trees, over and over again.  There were well over fifty of them in the area, both adult and juvenile.   For information on visiting Bombay Hook National Wildlife Refuge, see their web site at: http://www.fws.gov/northeast/bombayhook/

Shot with the Nikon D7000 and Sigma 50-500mm lens @ 500mm.  Manual exposure mode F7.1, 1/1250th of a second shutter speed, ISO 400, spot metering.  Handheld while sitting in my car stopped on the wildlife drive.