I recently had the opportunity to go on a boat taking us to an area where seabirds with numbers in the thousands were nesting. One of my favourites were gannets. Some find them dull but I find them beautiful. Their subtle colours and beautiful markings make them a winner for me. We found their numbers were devastated last year due to Avian Flu but are bouncing back now. There is also found that you can tell who has had the flu. They have a black iris as opposed to the normal blue of a normal specimen. It is thought their vision is completely normal but you can still easily tell the difference.