On the Bird-Life of Eastern Algeria. 133 



they are placed by the side of T". u. uralensis. Tn the 

 Pyrenean race the blackish barrings ou the uader surface 

 are very distinct and connected, and the belly is never very 

 heavily marked with white. The upper surface is inclined 

 to be dark and rather cold in tone, having less of the warm 

 brown tints in the ground-colour of the mottled feathers. 

 The average wing-measurement of the five specimens ex- 

 amined is 278"9 mm., or 21'6 mm. less than that of the 



average typical bird. The details are as follows : — 



Wing. 

 2 ad. Pic de Gaube, Htes. Pyr., 1,800 m., Oct. 10, 1912. 



(Ii)gram Coll.) 284 mm. 



2 ad. Environs of Cauteret, Htes. Pyr., 2,000 m., Nov. 8, 



1906. (Tring Mus.) 281 mm. 



5 ad. Environs of Cauteret, 1,G00 m., .Tune 1906. (Tring 



Mus.) 277 mm. 



5 ad. Foret de Gaube, Htes. Pyr., 1,600 m., Oct. 10, 



1904. (Tring Mus.) 2(0 mm. 



2 ad. Bagneres-de-Bigorre, Htes. Pyr., Sept. 1, 1881. 



(Marmottan Coll.) 282 mm. 



By way of comparison it might be interesting to state 

 that the average wing-measurement of twenty-six males of 

 T. u. urogallus from various parts of Europe is o86"3 mm. 

 (maximum 403 mm., from Lithuania [Brit. Mus.] : 

 minimum 374 mm., from Scotland [Brit. Mus.]). The 

 average of a similiar number of females is 300o mm. 

 (maximum 317 mm., from Novgorod, Russia [Tring Mus.] ; 

 minimum 286 mm., from Norway [British Mus.]). 



VII. — Notes on the Bird-Life of Eastern Algeria. By 

 the Rev. F. C. R. Jourdain, M.A., M.B.O.U. With 

 Contributions by H. M. Wallis, M.B.O.U., and F. R. 

 Ratcliff, M.B.O.U. 



The following notes are based upon two visits paid by the 

 writer to eastern Algeria in the spring of 1913 and of 1914. 

 After landing at Philippeville I travelled by rail to Con- 

 stantine, and thence to Biskra, breaking the journey at Ain 

 Yagout, Batna, El Kantara, El Outaia, and Biskra. From 



