keith
Well-known member
Years ago I was on the Island of Lundy looking for the Ancient Murrelet, I saw a small dot shimmering in the heat haze between two larger dots which were possibly razorbills. It was probably the bird due to it's size. A well known birder was just behind me and he was describing the bird in detail, the black and white head etc. I remember thinking at the time, what the hell is he looking through?, do optics vary that much?