There's an email thing called dovecot. (Details irrelevant, if you've never heard of it all you need to know is it's an email thing.)
TIL there's a physical thing called a dovecot, which is a cot (bed) for doves and pigeons.
Upon learning this, I was like "oh! like carrier pigeons! that is a clever pun!" but no it turns out they mostly just kept pigeons to eat their eggs and use their poop as fertilizer :( (I probably have vastly inflated ideas of how often pigeons were used to carry messages)
Also I realized just now while typing this that the word "cottage" comes from "cot". Language is fun!