Hi Birdforum & nice to meet you. All wildlife has always been a passion for me throughout my life, though I by no means consider myself an expert! I'm lucyk enough to spend my free time sailing around the Hamford backwaters of North Essex (Arthur Ransome's Swallows & Amazon territory) where there is an abundance of bird species & seals. On my last 2 trips I spotted a bird flying rather cumbersomely towards us & then land in the water next to us. Needless to say it didn't look like a species we are used to seeing in these waters so snapped some shots. I could only say that it looked like a flying penguin, so my assumption was it could be a winter plumage guillemot or juvenile razorbill. The flat muddy waters & banks of the Essex Coast are not the usual habitat though so surely I cannot be right?..... Pictures included so that someone can advise if I'm right.... please.