COLE: AVES FROM YUCATAN. 129 



Gaumer (Boucard, Proc. Zool. Soc. Lond., 1883, p. 454) reports this Tro- 

 gon as very rare in Yucatan. 



48. Trogon melanocephalus Gould. 



Black-headed Trogon. 

 Maya name, kus-tln. 

 Five specimens : 



a. 9 , March 19, 1904. 



b. J, March 23, 1904. 



c-e. Chichen-Itza, 189-, E. H. Thompson. 



The yellow on the ventral parts of the specimens taken by me is decidedly paler 

 than in examples from Mexico and Central America with which they were com- 

 pared, and the white band below the black of the breast is rather broader. The 

 three birds from the Thompson collection, however, are typical. It is possible 

 that the differences noted above may be seasonal, but as the Thompson birds 

 bear no date this cannot be determined from the specimens in hand. 



Eye-lids of recently killed bird, light azure blue. 



49. Trogon caligatus Gould. 



Booted Trogon. 

 Maya name, kus-tln. 

 Six specimens : 



a. 9 , March 5, 1904. 



b. [<£], March 18, 1904. 



c-f. Chichen-Itza, 189-, E. H. Thompson. 

 Occasionally seen around the Great Cenote. 



CUCULIDAE. 



50. Piaya cayana thermophila (Sclater). 



Long-tailed Cuckoo. 

 Maya name, kljp-tso 1 . 

 Four specimens : 



a. $ (?), Feb. 28, 1904. 



b. $ ( ? ) March 4, 1904. 



c. (alcoholic), 1904. 



d. Chichen-Itza, 189-, E. H. Thompson. 



Not uncommon. I am surprised that Chapman did not note this bird. 

 Iris red. 



51. Geococcyx affinis Hartlaub. 



Mexican Road runner. 



Maya name, kum-kumil. i( ' Xcum-kumil' is its name in Western Yucatan ; 

 in the East the Indians call it ' Bochen-choo-lool,' " Boucard, Proc. Zool. Soc. 

 Lond., 1883, p. 454. 



vol. l. — No. 5 9 



