'PLATE 23 



AVES 



Yucatan Screech Owl or Moan-bird {Otus choliba 

 thompsoni) 



1. Dresden 7c. 



2. Tro-Cortesianus 66a. 



3. Dresden 11a. 



4. As a head-dress, Tro-Cortesianus 94c. 



5. As a head-dress, Dresden 18b. 



6. Glyph associated with Moan-bird, Dresden 7c. 



7. Same, Dresden 7c. 



8. Dresden 10a. 



9. Peresianus 10. 



10. Peresianus 5. 



11. Glyph representing head, Dresden 38c. 



12. Same, Dresden 8b. 



13. Same, Dresden 53b. 



14. Same, Dresden 16c. 



15. Glyph possibly representing Moan-bird, Dresden 38c, 



16. Glyph of head, Dresden 53b. 



17. Glyph associated with Moan-bird. 



18. Tro-Cortesianus 73b. 



19. As a head-dress, Dresden 16c. 



20. As a head-dress, Tro-Cortesianus 95c. 



21. Glyph associated with Moan-bird, Dresden 7c. 



IV 27 



