The Helmet is a breed of fancy pigeon developed over many years of selective breeding.
[1] Helmets, along with other varieties of domesticated pigeons, are all descendants from the rock pigeon (Columba livia).
The breed has medium face, short face, plain-head and crested varieties.
[2] Helmet pigeons have been referenced since the early 15th century and appear to have origins in Germany.
The modern varieties were refined in the latter 20th century.