755 
Recently published Ornithological Works- 
Amizilis bangsi (Costa Rica) ; Euplierusa eximia nelsoni 
(Vera Cruz) ; Anthracothorax prevosti gracilirostris (Costa 
Rica) ; Florisuga mellivora tobagensis (Tobago). 
These diagnoses, like those in the former paper, are, no 
doubt, in anticipation of the descriptions in the fifth volume 
of Mr. Ridgway’s work, which we hope will soon be pub¬ 
lished. 
103. Riley on the Sharp-shinnecl Hawk. 
[On the Name and Synonymy of the Sharp-shinned Hawk. By J. H. 
Riley. Proc. Biol. Soc. Washington, xxiii. p. 77.] 
Mr. Riley points out that if, as he suspects, Accipiter 
fi'ingilloides Vigors of Cuba is identical with Sparvius strialus 
Vieill. of San Domingo, the species ought to bear the latter 
specific name, as being ten years older. He has not yet been 
able to compare specimens from the two islands. 
104. Thienemann on the Bird-Observatory of Rossitten. 
[Die Vogelwarte Rossitten der Deutschen Ornithologischen Gesell- 
schaft und das Kennzeichnen der Vogel. Von Dr. J. Thienemann. 
Berlin, 1910. 8vo.] 
This little pamphlet of 16 pages contains full information 
on the bird-observatory of Rossitten in the south-east corner 
of the Baltic, founded by the German Ornithological Society 
in 1901. It is well illustrated by maps and text-figures. 
The institution is specially devoted to the question of migra¬ 
tion. Full particulars are given respecting the mode of 
labelling birds with aluminium rings, so that they may be 
recognisable when captured elsewhere, and information as to 
their direction of flight thus be obtained. As is well known, 
Storks labelled at Rossitten have been captured in many 
places in South Africa. 
105. Waite on the Birds of the Subant arctic Islands of Neiv 
Zealand. 
[Reports edited by Charles Chilton, M. A., D.Sc., F.L.S. Pp. 351-584 : 
Aves. By Edgar R. Waite, Curator, Canterbury Museum, Christchurch, 
New Zealand.] 
The “ Subantarctic Islands” belonging to New Zealand 
