premise: a <mask> stalk
hypothesis: the best context for <mask> here is Marked with a band or circle; but not An Asiatic bird (Gracula musica), allied to the starlings.  It is black, with a white spot on the wings, and a pair of flat yellow wattles on the head.  It is often tamed and taught to pronounce words.  It is one of the birds called mynah bird..