370 Recently published Ornithological Works. 



38. Herman on Sight in Birds. 



[Vom Blick des Vogels. Von Otto Herman. Aquila, xi. (1904), 

 pp. 360-368. (Written in Hungarian and German.)] 



Discussions having arisen as to the power of sight in birds, 

 Herr Herman has published a contribution to our knowledge 

 of the subject, in which he draws his conclusions from Crows, 

 Raptorial birds, Shrikes, Terns, and so forth. The range of 

 sight was found to vary from two to twenty-five metres, 

 or a much greater distance in the case of Vultures, but 

 no absolute conclusions should be drawn from the cases 

 mentioned without a prolonged enquiry. 



39. Herman and Csiki on the Food of Birds. 



[Von der Nahrung der Vogel. Zwei Abhandlungen. — I. Nahrung der 

 Vogel. Von Otto Herman. II. Positive Daten iiber die Nahrung 

 unserer Vogel. Von E. Csiki. Reprinted from Aquila, xi. (1904), 

 pp. 257-269. (Written in Hungarian and German.)] 



At the Third Ornithological Congress, held at Paris in 

 1900, the Section of Economic Ornithology and Bird-pre- 

 servation reported in favour of urging all countries and even 

 their governments to take up seriously the subject of the 

 utility or harmfulness of birds, as being of the greatest 

 economic importance. It was urged that enquiries should 

 be instituted on regular business lines, that migratory and 

 non-migratory species alike should be observed during every 

 month of the year and for several years in succession, that 

 the contents of their stomachs should be carefully noted, 

 and lists prepared of their action towards the farmer's crops. 

 The authors are proud to say that Hungary is in the van of 

 the movement, and that other countries are following, though 

 Britain has not as yet announced its adhesion ; at the same 

 time they wish to advance with caution, while never losing 

 sight of their goal. The second article gives a detailed account 

 of the examination of a considerable number of species. 



40. 'Irish Naturalist.' 



[The Irish Naturalist. A Monthly Journal of General Irish Natural 

 History. Vol. xiv. Nos. 1-12 (1905). Eason & Sons, Dublin.] 



Among the ornithological articles in this journal may 



