Yellow-legged Gull in Istanbul

The only gull I saw well enough to identify on my trip to Europe was the Yellow-legged Gull which I saw in Turkey. There were many patrolling the part of Istanbul where we stayed, and on a rooftop just below our hotel window a pair was caring for a downy chick. Their eternal vigilance seemed to be the price for that chick's survival, considering the numbers of Hooded Crows that were constantly nearby.