A white pigeon is often considered a symbol of peace and purity, particularly in Christian cultures, and is frequently released at ceremonies to represent a new beginning or message of hope; historically, the color white associated with doves (closely related to pigeons) further solidified this symbolism; due to their excellent navigation abilities, pigeons, including white ones, were extensively used as carrier pigeons during war times, delivering crucial messages and saving lives;. 

Key points about white pigeons:

Symbolic meaning:

White pigeons are widely seen as a symbol of peace, purity, and the Holy Spirit, making them a common choice for release at weddings and other celebratory events. 

Historical use as messengers:

Pigeons, including white ones, were extensively used as carrier pigeons during World War I and II due to their remarkable ability to navigate back to their home loft, even over long distances. 

Distinguishing from doves:

While often used interchangeably, "dove" is typically associated with a white pigeon, though the scientific distinction between the two is minimal. 

Not a separate species:

A white pigeon is simply a color variation of a common pigeon, not a distinct species.