1 92 1,] Recently published Ornithological Works. 333 



Skovgaard on Danish Birds. 



[Den Sorte Stork, saerlig i Denmark, i tekst og billeder af P. 

 Skovgaard. Pp. 1-5G ; manj- photographs. Viborg- (Backhauseus), 

 1920. 8vo.] 



[Danske-Fugle : Organ for Dansk Oruithologisk Central ved P. 

 Skovgaard. Viborg. Aarg. 1, no. 1, 1920.] 



The first of these publications contains an account of the 

 life-history of the Black Stork (Ciconia nigra) in Denmark. 

 There is a map showing the breeding-stations, from which 

 it appears that it is most abundant in the eastern half of 

 Jutland, less so in the islands, and is hardly found at all in 

 the western half of the peninsula. It arrives at its breeding- 

 places generally in April, though occasionally in March, 

 and leaves as a rule in August or early September, The 

 paper is illustrated with a number of very fine photographs, 

 all taken by the author himself. 



The second publication is a new magazine devoted 

 to Danish Birds, though the whole of the articles are 

 apparently from the pen of Mr. Skovgaard. One of 

 these deals with the food of the White Stork as deduced 

 from an examination of the stomach. Another has an 

 account of Air. Skovgaard^s activities in bird-ringing, and 

 there is also a list of a collection of Danish birds belonging 

 to Mr. C. Reimers of Viborg, with a map and some photo- 

 graphs of the rarer species. 



We congratulate Mr. Skovgaard on his industry and 

 hope that he will be able to continue his studies, and that 

 his magazine will have a long life. 



Stresemann on the races of Long -tailed Tits and Bullfinches. 



[Uber die Formen der Gruppe ^(jithalos caudatus und ihre Kreuzuugen. 

 tJber die europaischen Gimpel (mit einer Kart ihrer Verbreituug). 

 Von Erwin Stresemann. Beitrage zur Zoogeographie derpalaarktisclien 

 Region. Herausgegeben von der Ornith. Gesellsch. in Bayeru. Heft 1, 

 1919, pp. 1-56.J 



In the first of these essays Dr. Stresemann reviews the 

 very variable group of the Long-tailed Tits, among which 



