Francisco Piedrahita:
Hartlaub's Gull (Larus hartlaubii)
Francisco Piedrahita:
Cape Gull (Larus vetula)
Francisco Piedrahita:
Cape Gull (Larus vetula)
Francisco Piedrahita:
Gray-hooded Gull (Chroicocephalus cirrocephalus) (Chroicocephalus cirrocephalus poiocephalus)
Francisco Piedrahita:
Gray-headed Gull (Larus cirrocephalus)
Francisco Piedrahita:
Yellow-legged Gull (Larus michahellis)
Francisco Piedrahita:
Yellow-legged Gull (Larus michahellis)
Francisco Piedrahita:
Sandwich Tern (Sterna sandvicensis)
Francisco Piedrahita:
Swift Tern (Sterna begii)
Francisco Piedrahita:
Swift Tern (Sterna begii)