1883.] MR. A. BOUCARD ON BIRDS FROM YUCATAN. 457 



This large Hawk was shot by my friend Dr. Filipe Alcala near his 

 house. I have heard this bird spoken of in all parts of Yucatan, 

 but it has never been my fortune to see one alive. 



143. MiCRASTUR MELANOLEUCTJS. 



Falco percontator, Cabot, Bost. Journ. N. H. iv. p. 462. 

 [In Dr. Cabot's collection. — O. S.'] 



144. AccipiTER BicoLOR (VieilL). 



Shot at the aguada of Yok-satz in March and May. 



145. AcciPiTER Fuscus (Gm.). 



Dec. 1878, Chable'. Only a few specimens of this Hawk have 

 been seen. It is very shy, and frequents thick shady woods, 

 where it flies with rapidity. In its stomach were found only mice. 



146. TiNNUNCULus spARVERius (Linn.); Lawi-. Z. c. p. 207- 



This little Hawk lives in the old church-towei's and mined bnild- 

 ingSo It preys upon the small birds and young chickens which it 

 finds in the cities. Generally one or two pairs may be found in 

 every village. I have never seen it elsewhere. 



147. [Hypotriorchis femoralis. 



In Dr. Cabot's collection from Yucatan. — O. S.'] 



148. Hypotriorchis rufigularis (Daud.). 

 Hypotriorchis aurantiiis, Lawr. I. c. p. 207. 



149. Leptodon cayennensis (Gm.). 

 •2 , Izalam. Iris dark grey. 



150. IcTiNiA PLUMBEA (Vieill.). 



Only two specimens of this fine Hawk were seen in Yucatan, and 

 these were flying over the aguada near Tizimin. One was shot 

 very high in the air, but the other, which was not within gunshot, 

 escaped. Its flight is slow and with set wings whirling in easy and 

 graceful turns. 



151. Herpetotheres cachinnans, Vieill. 

 [In Dr. Cabot's collection. — O, SJ] 



152. PoLYBORUS CHERiWAY (Jacq.) 



Pohjborus auduhoni, Lawr. I. c. p. 207. 



This Hawk is rather rare in Yucatan, only four pairs having been 

 seen in the year. It is always seen in pairs. 

 [In Dr. Cabot's collection.— O. S.'\ 



153. Catharistes ATRATUS (Bartr.). 

 [Not seen by me. — 0. S.'] 



