From A Wiki of Ice and Fire
The Blackbird is a ship in service to the Night's Watch at Eastwatch-by-the-sea. It is the largest of the ships in service with the Night's Watch. Its sails are faded grey.
A Feast for Crows
The Blackbird carried Samwell Tarly, Dareon, Maester Aemon and Gilly to Braavos.
References and Notes