Black-headed Gull (Larus ridibundus)

First winter bird swimming, first sighting at Hyena Dam, Nairobi National Park, Nairobi, Kenya

Grey-headed Gull (Larus cirrocephalus)

Adult, part of a large colony, feeding in the shallows, Lake Elementaita, Nakuru, Kenya

Slender-billed Gull (Larus genei)

Uncommon migrant on inland Kenyan Lakes - non-breeding plumage, Lake Magadi, Magadi, Kajiado, Kenya

Sooty Gull (Ichthyaetus hemprichii)

Bird flying along the shore, Shella Beach, Lamu, Kenya