Over the border

A trip into Suffolk at the end of last month gave some astounding views of a Great Northern Diver near Lowestoft. Look at that incredible red eye. I wonder why the eye is such a red colour? It shares this feature with other divers and some of the grebes. Perhaps it aids sight in the dull light of murky water. Its eye was pointed skyward a few times. I feel sure the beast had seen something high in the air; a raptor perhaps? Try as I might I couldn’t see anything, but I’d be willing to bet my right arm there was something up there. I’m constantly amazed sometimes how the eyesight on birds has developed to an extent beyond our understanding.