PLATE 21 



AVES 

 Yucatan Horned Owl {Bubo virginianus mayensis) 



1. Owl in flight, Stucco ornament, Palenque, Palace, House- 



E (Maudslay, IV, PL 43). 



2. Stone carving of owl, Yaxchilan, Stela 4 (Peabody Mu- 



seum Memoirs, II, PI. 70). 



3. Ow in flight, carved in wood, Tikal, House C, linteL 



(Maudslay, III, PI. 78). 



