

REVIEWS. 207 



companied by such telling examples of what the camera is 

 capable of recording, must go far towards promoting that 

 study of the wild life of our islands which is gaining such a 

 hold on the public of to-day. To all those who are interested 

 in this study we can heartily recommend Mr. Macpherson's 

 book. 



The photographs are quite among the best of their kind 

 that we have seen. 



N. F. T. 



VIII. Jahresbericht (1908) der Yogelwarte Rossitten der 

 Deutechen Ornilhologischen Gesellschaft. By Dr. J. Thiene- 

 mann (reprinted from the Journal far Ornithologie, July, 

 1909.) 



The chief interest that this report will have for readers of 

 British Birds lies in the pages (432-470) devoted to 

 the results of the bird-marking enquiry. During 1908, 

 31 "returns" were got, including 11 Storks, some of them 

 from Africa. These African returns have been published, 

 however, in a separate paper, referred to already in these 

 pages (supra, p. 86, see also Vol. II, p. 366). More important 

 are the summaries of all the returns for Hooded Crows 

 (Corvus comix) and Black-headed Gulls [Larus ridibundus) 

 since the beginning of the enquiry. Of the Crows we need 

 say little, the results having been already described in 

 British Birds (Vol. II., p. 364- 6), since which time the 

 returns have merely afforded confirmation of the facts 

 already ascertained. It may be mentioned t hat particulars 

 are given of 111 Crows re-obtained, out of a total of 909 

 marked, the percentage of returns now standing as high as 

 12.2, which is encouraging news to those who are taking up 

 this method of migrational study ! The returns are also 

 marked on one of the maps, a glance at which should 

 convince the most sceptical person of the value of bird- 

 marking. 616 Black-headed Gulls have been marked at 

 their nesting place at Rossitten, and of these 40 ( = 6.4 per cent. ) 

 have been heard of again and are recorded in this report. 

 On the strength of these, Dr. Thienemann now lays down 

 three routes : — (a) along the south coasts of the Baltic and 

 North Sea, and down the east coast of France as far as 

 Bordeaux ; (b) the same as far as the Zuyder Zee, and then 

 crossing the continent by the Rhine and the Rhone; (c) 

 directly across the continent by the Vistula, Danube, Save, 

 etc., forking at the head of the Adriatic and going a little 

 •distance down each side, and extended (not definitely marked) 



