What is the meaning of ?

black kite, Milvus migrans

short for 鳶口 (tobi-guchi, a fire hook)

short for 鳶の者 (tobi no sha, a construction worker, an Edo period fireman)

short for 鳶色 (tobi iro, kite-wing brown)

someone of no fixed employment, a playboy

alternative form of (tobi, black kite, Milvus migrans)

someone who steals things from the front of a house or shop as they pass by

short for 鳶合羽 (tonbi-kappa, a caped overcoat)

Source: wiktionary.org