Recently published Ornithological Works. 5.23 



is now going on will sadly interfere with the native birds. 

 But under these circumstances should he not place a little 

 re!>traiiit on the ardour of his collector, wiio in some cases, 

 it appears, has brought home such series as 92, 91, 80, and 

 G8 specimens of the same species ? 



In the second paper Mr. Bangs gives further notes on 

 Costa Rican birds received, for the most part, from the same 

 quarter, and describes as new forms : — Coccyzas aitwricuims 

 occideittalis, Troijon under woodi, Pachyrhamphus versicolor 

 eostaricemis, Myiohius xanthupygiis aureatus, Troglodytes 

 ochracensligea, MywborusaurantiucusacceptuSjPhlogothruupis 

 sauguiaolentu uprica, and Embcrizoides sphenura lucaris. 



5S. Bertoni on the Birds of Paraguay. 



[Segunda coutrabuciiki a la Oruitologia Paraguaya. Nuevas especies 

 Paraguayas. A. de VViakeh-ied Bertuiii. (Revista del Inst. Paraguayo. 

 Asuncion, 1907).] 



We have received a copy of M. Bertoni's second contri- 

 bution to the Ornithology of Paraguay. It gives the names 

 of 45 species to be added to the List of the birds of that 

 country, and short notes on each of them. They are mostly 

 well-known species, and none are described as new. 



59. Bonkote's ' Birds of Britain.' 



[Birds of Britain. By J. Lewis Bonliote, M.A., F.L.S., F.Z.S., Mciubei- 

 of the British Ornithologists' Union. With 100 illustrations in colour, 

 selected by II. E. Uresser from his 'Birds of Europe.' London: Adam 

 and Charles Black. 1907. 1 vol. 8vo, 40-5 pp. Price 20s.] 



The increase of late years in the number of publications 

 relating to the Birds of the British Islands renders it 

 evident that there is still room for a popular handbook 

 on British Birds, and this want ]\Ir. Bonhote has en- 

 deavoured to supply. He has called to his assistance in this 

 matter Mr. Dresser, our well-known authority on the Birds 

 of the Palajarctic Region, who has kindly responded by 

 permitting Mr. Bonhote to copy the illustrations prepared 

 by Keulemans for the ' Birds of Europe.^ This has added 

 much to the value of the present volume, and at the same 

 time has enabled it to be supplied at a moderate cost. 



