The Collaborative International Dictionary of English v.0.48:
Nestor \Nes"tor\, prop. n. (Zool.) A genus of parrots with gray heads, of New Zealand and Papua, allied to the cockatoos. See Kaka. [1913 Webster]WordNet (r) 3.0 (2006):
Nestor n 1: (Greek mythology) a wise old counselor to the Greeks at Troy 2: a genus of Psittacidae [syn: Nestor, genus Nestor]