If it ain't sharks, it's bloody corvids.... a harassed Northern Harrier at the dunes off Chatham, Cape Cod yesterday evening. taken on a drive-round with locally-based family and an opportune few minutes scanning the sand and coastline (where there were also a dozen White-winged Scoters and hundreds of Eiders, lots of gulls, Great Northern Divers and plenty of other stuff out of binocular ID range).