Great Shearwater (left) with Laughing Gull for size comparison. It is amazing just how big a lens you really need to get close enough for good shots of birds - or how close you have to be to the bird! This shearwater looked magnificent through a scope and at times I could even see the sun glint in its eye - and yet a 400mm lens wasn't really enough! Here though, you can see the dark-capped look, pale neck collar and typical underwing pattern of a Great Shearwater [photo by Mike Crewe].
From above, the same head pattern is visible on the Great Shearwater and it also shows a narrow white rump patch, dark tail and a dark outer wing with contrastingly pale secondaries [photo by Mike Crewe].