CONTENTS. 



With the Whalers at Durban, and a few Notes on the Anatomy of the Humpback 

 Whale (Megaptera hoops) (with Plate and Illustration), Thomas B. Uoodall, 

 F.B.O.V.S.,F.L.S., 201. 



The Diurnal Migrations of certain Birds observed at the Tuskar Eock, Professor 

 C. J. Patten, M.A., M.D., Sc.D., 212. 



Notes and Queries: — 



Aves.- — Nuptial Display of the Pied Wagtail and Yellowhammer, F. B. Kirlcman, 

 229. Nuptial Display of the Pied Wagtail, John B. B. Masefield, 229. The 

 Sense of Beauty in Birds, Fredh. J. Stubbs, 229. Syrnium aluco in Suffolk, 

 Bev. Julian G. Tuck, 231. Greenland Falcon (Falco candicans) in Co. 

 Ma,yo, Bobert Warren, 231. Rufous Variety of the Partridge (Perdix mon- 

 tana), John B. B. Masefield, 232. Black-throatc d Diver {Cohjmbus arcticus) 

 in Co. Mayo, Bobert Warren, 232. 

 Amphibia. — Destruction of Toads, Arthur Loveridge, 233. 



Crustacea.— The Maximum Weight of the Edible Crab (?), W. L. Distant, 234. 

 Immense Swarms of Euthemisto compressa on the Shore at Redcar. Thos. 

 H. Nelson. 234. 

 Annelida. — Dutrochet's Land Leech in Surrey, T1 T . L. Distant, 235. 

 Zoological Notes from Mentone, 1912, J. Rt McClymont, 238. 

 Obituary. — Lord Avebury, 238. 

 Notices of Books. 239-240. 



8vo. Cloth gilt. Pp.vii+109. Price4s.net. 



THE 



FOOD OF SOME BRITISH 

 WILD BIRDS: 



A STUDY IN ECONOMIC ORNITHOLOGY. 



By WALTER E. COLLINGE, M.Sc, F.L.S., F.E.S., Hon. F.R.H.S. 



The nature of the food of man)' of our wild birds has hitherto 

 been largely guesswork, for, with the exception of a very few species, 

 no detailed investigations have been carried out, and without these 

 details, obtained iu both the field and the laboratory, it is impossible 

 to arrive at any sound conclusions respecting their economic status. 



This work details the results arrived at after many years study, 

 including the particulars of post-mortems of 3,048 adults and 312 nest- 

 lings of 29 species of wild birds. Numerous observations made in the 

 iield, on the examination of faeces and pellets, and on the nature of 

 the food brought to the nest by the parents during the breeding 

 season are also giveu, together with chapters on birds as destroyers 

 and distributors of weed seeds, birds in relation to forestry, legislation, 

 protective measures, &c, and a copious bibliography. 



DULAU & CO., Ltd., 37. Soho Square, W. 



