Martlet
Pronunciation : Mart"let
Part of Speech : n.
Etymology : [F. martinet. See Martin the bird, and cf. Martinet a disciplinarian.]
Definition : 1. (Zo?l.)
Defn: The European house martin.
2. Etym: [Cf. F. merlette.] (Her.)
Defn: A bird without beak or feet; -- generally assumed to represent a martin. As a mark of cadency it denotes the fourth son.
Source : Webster's Unabridged Dictionary, 1913