366 Recenthj published Oriiithological Works. [Ibis, 



Kristiania, while six have occurred in Oesterdalen to the 

 north of Kristiania and one in Sweden in the Kalmar 

 district on the Baltic some 300 miles away. It appears 

 that the variation coexists side by side with tlie normal type, 

 and would therefore be more correctly regarded as a sport 

 or mutation and can hardly be considered a subspecies in 

 the ordinary sense in which that term is now used. 



Mr. Schaanning- has, however, thought it best to give this 

 variation a trinomial name derived from the district in 

 which it occurs. He regards it as an incipient species, 

 which is increasing and gradually becoming the pre- 

 dominant and prevailing type ot" the Blackcock in this 

 particular region. 



There are a number of interesting questions which arise 

 in regard to this curious variety, and some of them are 

 discussed at length in Mr. Schaanning's paper, to which 

 the reader must refer for further information. The paper 

 is very well illustrated with coloured and other photographs 

 of the various specimens. 



Sheels on Ulster Birds. 



[Rare birds in Ulster recorded by Mi". Alfred Sheels. IJepriiited from 

 the "Northern Whig.'' Belfast, Jan. 1922.] 



A list of the occurrences of rare birds in the neigh- 

 bourhood of Belfast such as Golden Oriole, American 

 Black-billed Cuckoo, Snowy Owl, American Bittern, 

 Wilson's Petrel, etc., etc., by Mr. Alfred Sheels, a well- 

 known Belfast taxidermist. 



Todd on the Tyrannidce. 



[Studies in the Tyrannidte. I. A revision of the ^enus Pipromorpha. 

 By W. E. Clyde Todd. Proc. Biol. Soc. Washington, vol. 34, Dec. 1921, 

 pp. 173-192.] 



A careful revision of the South American genus of 

 Tyrant-birds, Pipromorpha, with key and full synonymy. 

 Four species, divisible into eleven races, are recognized. 



