7 43 
1921 .] Recently published Ornithological Works. 
Aquila. 
[Aquila : Periodical of Ornithology. Edited by Stephan von Chernel. 
Vols. xxvi. & xxvii. Budapest, 1920 & 1921.] 
The articles in ‘ Aquila 3 are printed in Magyar and 
German with occasionally a summary in French or English. 
The first one of vol. xxvi. by the editor, Herr von Chernel, 
is a plea for a renewal of an international scheme for the 
protection of birds useful in agriculture. Tt was prepared 
for the great Peace Conference in Paris at the end of the 
war, but apparently nothing came of it. Bird-ringing was 
continued actively during the war years in Hungary, and 
J. Schenk has a report on the results for the years 1916- 
1919. Some 2500 birds were ringed, the greater number 
being Swallows (701), Great Tits (597), and Storks (241). 
Two of these latter, ringed in the summer of 1911, were 
recovered in Egypt in 1912 and in South Africa in 1916 
respectively, but all the Tits recovered were taken in the 
same locality in which they were ringed, as were also the 
Swallows. 
Other articles by J. Schenk deal with migration dates in 
Hungary for 1919 and 1920 respectively. The food-habits 
of the Magpie are reported on at great length by E. Csiki, 
but the results are not presented very clearly, so that it is 
difficult to say whether the bird should be considered useful 
or harmful in Hungary. The longest article in the 
27th volume is one on the Birds of the Siebenbiirgen in 
Transylvania, based on a manuscript written by iNicolaus 
v. Zeyk, who lived in the early half of the 19th century. 
There are a number of shorter notices all relating to 
Hungarian ornithology in the two volumes here noticed. 
' British Birds. 
[British Birds. An illustrated Magazine devoted chiefly to the Birds 
in the British List. Vol. xiv. June 1920 to May 1921; 12 nos.] 
The last completed volume of ‘British Birds 3 fully main¬ 
tains the high standard set up by its predecessors, and is 
full of matter of interest to students of Pakearctic birds. 
