Sorry for the late report.  I stopped by Hughes Hollow around noon yesterday.  The immature white ibis flew into the main impoundment on the east side when I arrived and spent about 45 minutes.  40+ common egret, 12+ great blue herons and 6 green herons were also present. Not many shorebirds: 6+ killdeer, 3 solitary sandpipers and 1 greater yellowlegs.  One blue-winged teal flew overhead as well.
 
Matt Von Hendy
Rockville, MD