Not in at the moment http://ferso.org/mystery-at-the-mansion-slot/ mystery at the mansion slot  While the red knot prefers the sandier beaches of Plum Island off Newburyport, the bird is a regular visitor at Rockportﾃ｢ﾂ�ﾂ冱 Halibut Point State Park on its migration, according to Gloucester resident Chris Leahy, the Gerard A. Bertrand Chair of Natural History and Field Ornithology at Massachusetts Audubon.