1921.] Recently published Ornithological Works. 321 
The wings of seven birds from Matto Grosso vary from 
205 to 239 mm., while in a series of five males from 
Colombia the variation ranges from 228 to 249 mm., and 
the shape of the wing as shown in a text-figure is very 
different in the two extreme cases. Mr. Chapman believes 
that the short-winged individuals are young birds in their 
first winter, and that as they grow older the wings, as well 
as the tail and culmen, increase in length. Ostinops decu- 
manns is certainly a species of considerable interest, and 
deserves further study. 
Christiani on a new Rock-Pipit. 
[Den vestnorske Skeerpiber (.Anthus petrosus schityleri, subsp. nov.). 
Af A. Christian!. Dausk. Ornith. Forenings Tidsskrift, 1920, 
pp. 157-162.] 
Mr. Christiani here describes a new subspecies of Rock- 
Pipit, Anthus petrosus schilleri, from western Norway. The 
types are from Floro Island near Trondhjem, and Skaer- 
gaaden near Bergen. The chief distinguishing character is 
apparently a slight colour-difference in the vinous of the 
chest. In a further note on the Faroe Island form, A. p. 
kleinschmidtij described by Dr. Hartert, Mr. Christiani states 
that the first observer who pointed out its peculiarities was 
J. C. H. Fischer (Journ. Ornith. 1861, p. 432), and not 
Pastor Kleinschmidt as stated by Hartert. 
Coward on British Birds. 
[The Birds of the British Isles and their Eggs. By T. A. Coward. 
Second Series. Pp. vii + 576 ; 213 col. pis. ; 69 photographic illustr. 
London & New York (Warne), 1920.] 
The second and concluding portion of this little book, 
which is one of Warne’s 6 Wayside and Woodland*’ series, 
is hardly up to the level of the first volume ( cf . Ibis, April 
1920). This is, however, chiefly due to the nature of the 
subject-matter, and not to any lack of skill in the author. 
The families treated are those from the Anatidse to the 
Tetraonidse, and it is easy to understand that few persons 
can visit the breeding-haunts of every species, or write with 
