] 98 Recently published Ornithological ii urks. 



Spermestes nigriceps and Tharrhaleus jerdoni (by Mr. W. F. 

 Teschemaker), Trachyphonus cofer (with a good coloured 

 plate) by Major B. R. Horsbrugh, and Neophema venusta 

 (by Mr. W. A. Fasey). 



J)r. A. G. Butler discusses the question of morality in 

 Birds; Mr. F. Finn continues his notes on "Aviculture at 

 the Zoo" (in which special attention is drawn to the splendid 

 Eagle Pithecophaga jefferyi and two fine males of Paradisea 

 apoda received from Sir W. Ingram), and gives us a further 

 instalment of his " Stray Notes on Indian Birds/' with 

 a note (p. 331) on the warty heel-pads of two species 

 of Woodpecker (Dendrocopus macii and Brachypternus 

 aura it I ius). 



In the "Correspondence" Mr. E. J. Brook furnishes a 

 list of rare birds now in his aviaries, brought by Mr. (Jood- 

 fellow from New Guinea. 



5. Bonhote on Migration, 



[Migration Notes from North Holland. By J. Lewis Bonhote. Ornis, 

 1909, pp. 162 173.] 



These Notes are the result of two visits made by our 

 fellow-member to Holland, the first in the last week of 

 August 1906, and the second for a month in the autumn of 

 1908. One of the North Sea islands was selected, and six 

 miles of sandy and muddy shore brought under observation. 

 A considerable number of species were noticed, but no great 

 "rushes" were chronicled, a fact possibly due to the 

 weather, which was summer-like, with light breezes. 

 Mr. Bonhote' s conclusions are as follows : — (1) That migra- 

 tion is usually undertaken in small parties rather than in 

 large flocks ; (2) that the number of species migrating on 

 any particular day varies inversely as the barometric 

 pressure ; (3) that migratory birds are excessively fat on 

 their departure, and thin on their arrival ; (4) that among 

 the Limicolse the balance of evidence is in favour of the 

 adults migrating earlier than the bulk of the young. 



