Recently published Ornithological Works. 207 
12. Hartert’s Remarks on Creepers, Titmice, and Reed- 
Warblers. 
{Some Common-sense Notes on Creepers, Titmice, and Reed- Warblers. 
By Ernst Hartert. Ornis, vol. xiii. p. 58.] 
Dr. Hartert insists on the specific distinctness of the two 
European Creepers Certhia familiaris and C. brachydactyla, 
of which only the former is represented in England. Healso 
gives us some instructive remarks on the Titmice belonging 
to the groups Parus ceruleus, P.maor,and P. palustris, and 
maintains the specific rank of the ‘“ Willow-Tit,” “widely 
spread ia England.” He likewise comments on the difficulty 
of distinguishing skins of the two Reed-Warblers Acroce- 
phalus streperus and A. palustris, although everybody allows 
“that they are two different species.” We confess that we 
are still sceptical about the so-called Parus salicarius, and 
should like to know what Mr. Saunders will do with it in the 
next edition of his ‘ Manual.’ 
13. Hellmayr on a rare Bittern. 
[Note on a rare Bittern (Zebrilus pumilus). By C. E. Hellmayr. 
Ornis, vol. xiii. p. 56.] 
This note gives much information respecting a rare South- 
American Bittern (Zebrilus pumilus), and seems to prove 
that the rufous phase of plumage is that of the male bird 
and the blackish that of the female. 
14. Jourdain on Hybrids of the Black-Game and 
Pheasant. 
[On the Hybrids which have occurred in Great Britain between Black- 
Game and Pheasant. By the Rey. Francis C. R. Jourdain. Zoologist, 
1906, pp. 821-330, pl. ] 
In this article Mr. Jourdain discusses the records of the 
hybrids cited, and considers fifty of them to be authenticated. 
Only some four instances of this cross seem to be known 
from the Continent. One of the records from Derbyshire 
is corrected. 
