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PLATE 20 



AVES 



Harpy Eagle {Thrasaetos harpyia) 



^ 1. Glyph, Copan (Maudslay, I, PI. 16, gl. 3). 



2. Nuttall 53. 



y S. Glyph, Copan (Maudslay, I, PL 16, gl. 13). 



■ 4. Tro-Cortesianus 88c. 



5. Part of a head-dress, Dresden 14c. 



6. Peresianus 2. 



7. Dresden 14b. 



8. Eagle with crest feathers tipped by flints, Nuttall 



9. Glyph, Tro-Cortesianus 107c. 



10. Stone carving, Chichen Itza (Maudslay, III, PI. 52) ► 



11. Dresden 23c. 



12. Possibly an eagle's head, Dresden 43c. 



13. Possibly an eagle, Dresden 74. 



14. Bologna 7. 



