Chickens had feathers. (TV: The Invasion [+]Loading...["The Invasion (TV story)"]) The word for 'feather' and 'truth' in Hieroglyphs was Ma' at. (PROSE: Set Piece [+]Loading...["Set Piece (novel)"])
The First Doctor once freed John from an octopus' grip by tickling it with a feather. (COMIC: Shark Bait [+]Loading...["Shark Bait (TVC comic story)"])
The Eighth Doctor referred to the TARDIS as having "a few feathers ruffled." (AUDIO: Blood of the Daleks [+]Loading...["Blood of the Daleks (audio story)"])