What is "pigeonhouse"

Usage examples of "pigeonhouse".

Amid cheers that rent the welkin, responded to by answering cheers from a big muster of henchmen on the distant Cambrian and Caledonian hills, the mastodontic pleasureship slowly moved away saluted by a final floral tribute from the representatives of the fair sex who were present in large numbers while, as it proceeded down the river, escorted by a flotilla of barges, the flags of the Ballast office and Custom House were dipped in salute as were also those of the electrical power station at the Pigeonhouse and the Poolbeg Light.