ft 



list of synonyms, appears to be bicolor of Vieillot. In the Museum of Paris, where Vieillot 

 states that the type of his Sparvius bicolor is to be found, is an immature female specimen of 

 the present bird, in the same dress as is figured on our plate, marked as the original of that 

 author's description, with which it likewise well agrees. In his laborious studies of the types in 

 this Museum Dr. Pucheran has already shewn* that this specimen is the same as the larger of 

 the two individuals (belonging to different species), upon which Cuvier bestowed the name 

 Nisus variatus, and it appears to be that also which Lesson, in 1831, described under Cuvier s 

 name. We may add that the smaller type of Cuvier' s N. variatus seems to us to be a young 

 male of the true Accipiter pileatus of Brazil. 



Two other names appear to have been subsequently based upon the young dress of 

 the present species — Accipiter sexfaciatus by Swainson and Micrastur dynastes by Verreaux. 

 Typical specimens of both these supposed species are in the British Museum, where we have 

 had the advantage of consulting them. In its adult stage this Sparrowhawk seems never yet 

 to have been distinguished from the true A. pileatus. 



The range of this northern species appears to be much more extensive than that of its 

 southern congener, as will be seen by the list of localities above given. In Guatemala Salvin 

 found it sparingly distributed throughout the forests of the lowland districts, and obtained 

 specimens of it in various states of plumage. It was generally observed in the vicinity of 

 villages situated in the outskirts of the forest, and was well known to the inhabitants as an 

 audacious depredator of their hen roosts. It keeps, however, exclusively to the lower forests, 

 while in the highland portions of Guatemala its northern congener Accipiter cooperi appears 

 to take its place. 



Our figures of this species represent Guatemalan skins in the collection of Messrs. 

 Salvin and Godman at two-thirds of their natural dimensions. The adult bird is a male, shot 

 at Savana Grande on the southern slope of the Volcan de Fuego, in 1862. The young one is 

 a female from Choctum in Vera Paz obtained in January, 1861. 



* Eev. Zool. 1850, p. 6. 



Decembee, 1888. 





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