I managed to clock up the 89th species on my 2022 patch birding list on Friday after bumping in to the bird’s finder at the Cardiff Bay Wetlands Reserve. John had, about an hour earlier, spotted a Mediterranean gull among the flock at The Marl playing fields, so I strode in that direction, hoping the bird would still be present. At first I couldn’t find it as The Marl is popular with dog walkers and their pooches were constantly unsettling the large flock of Black-headed gulls prospecting diligently for worms in the lush grass. But, eventually, the birds settled down again and a thorough scan for a white rear end (adult Med gulls have no black on their wing or tail feathers) produced my bird.