Douglas Stuart at Lit Hub:
Doocot or dookit is the Scottish term for a dovecote or columbarium; a structure built to nest and breed domesticated pigeons. Some doo men keep their champion pigeons in doocots cut into attic spaces or adapted garden sheds, but on the schemes I lived on, we had neither attics nor gardens, and so the men who wanted to keep pigeons built their lofts out on any piece of unclaimed ground. Aesthetically they have little in common with the traditional stone dovecotes you might find on the grounds of a manor house. The doocots I remember were monolithic towers, twenty feet tall, and they were built from salvaged materials: old Formica tabletops, screwed to corrugated iron and offcuts of MDF. It gave most doocots a rickety charm, which the men tried to disguise by painting the whole thing a uniform colour.
more here.