The large bird genus Columba comprises a group of medium to large stout-bodied pigeons, often referred to as the typical pigeons.
As with other genera in the family, the terms dove and pigeon are used interchangeably, although smaller species are more likely to be called doves. The species commonly referred to just as the "pigeon" is the feral Rock Dove.
Most species in this genus are found in the Old World, but there are a few representatives in the Americas, and some species, notably the Feral Pigeon, have been introduced outside their natural range.
Columba ranks with St. Patrick and St. Bridget as one of the three patron saints of the Irish; he is supposedly buried with them at Downpatrick.
Saint Columba (7 December 521 - 9 June 597) is sometimes referred to as Columba of Iona, or, in Old Irish, as Saint Colm Cille or Columcille (meaning "Dove of the church").
According to Adomnan, Columba came across a group of Picts who were burying a man killed by the monster, and saved a swimmer with the sign of the Cross and the imprecation "You will go no further", at which the beast fled terrified, to the amazement of the assembled Picts who glorified Columba's God.