The family Laridae – Gulls, Terns, Noddies and Skimmers is a large family of medium to large seabirds of the Order Charadriiformes. Gulls are generally the largest of the four subfamilies and are typically grey above and white below and tend to be known to as scavengers. The Terns are usually smaller and more finely developed with long pointed wings and a much more graceful flight. The Noddies look similar to the Terns but are generally more darker coloured and are more Tropical in their distribution. The Skimmers are the most specialised feeders and have a more graceful build like the Terns, but have an elongated lower bill and a special feeding flight close to the water surface where the lower bill skims through the water until it senses prey and then snaps the two bills together to catch the prey.
Greater black-backed and Herring Gulls nesting - youtube.com Gulls - RSPCA - youtube.com Common v Arctic Tern - BTO - youtube.com Arctic Tern migration - EOL - youtube.com Brown Noddy - youtube.com Black Noddy - youtube.com African skimmers - Wild Nature - youtube.com Black skimmer feeding - youtube.com Kittiwake and other Small Gulls - BTO - youtube.com Kittiwakes - wikipedia.org
Sooty Gull breeding at Sir Abu Nair Island UAE – researchgate.net