■''Suiabm;^^ 



PREFACE. 



The Editors have great satisfaction in concluding the 

 twenty-first volume of ' The Ibis.' It is not every 

 periodical that lives to attain its majority ! 



Judging from the recent announcements of new 

 Bird-books, and the vigour with which others already 

 started are continued, it would appear that the " de- 

 pression " now generally supposed to be everywhere 

 prevalent has not affected our favourite Science. 

 On the contrary, ornithological work increases apace ; 

 and, as will be seen from the pages of this year's 

 volume, though some of our old contributors may 

 have relaxed their efforts to assist us, others have 

 come forward from nearly every part of the world. 



The Editors have no fear of the future good progress 

 of Ornithology and of ' The Ibis.' 



O. 8. 



P. L. S. 



Office of the British Ornithologists' Union, 

 6 Tenterden Street, London, W. 



