A Daurian jackdaw, a closely related Asian bird (Coloeus dauuricus).
A European bird (Coloeus monedula) of the crow family, often nesting in church towers and ruins.
A common European gull (Xema ridibundus).
An American gull (Leucophaeus atricilla); in summer the head is nearly black, the back slate color, and the five outer primaries black.