1921 .] Recently published Ornithological Works. 747 
It is named after the Prince of Wales, who had just 
previously passed through the country it inhabits during* his 
recent memorable journey to Australia. 
El Horner 0 . 
[El Hornero. Bevista de la Sociedad Ornitologica del Plata. Vol. ii. 
for 1920; 2 nos.] 
The second volume of C E1 Hornero,’ completed in two 
numbers, contains a good deal of information relating to 
the birds of the Argentine and other neighbouring States 
and maintains the promise of the first. Sen. J. Tremoleras 
contributes a list of the birds of Uruguay based 011 30 years’ 
observation. The last general list was that of Mr. O. V. 
Aplin, published in f The Ibis 9 for 1894, and we are glad to 
see Sen. Tremoleras quotes him and gives him all the credit 
due to him. Mr. A. G. Bennett, of Port Stanley, Falkland 
Islands, sends good notes and photographs on birds observed 
by him in the South Shetlands and South Orkneys. This 
article, though originally written in English, is trans¬ 
lated into Spanish for the pages of 4 El Hornero/ Some 
account of the nesting habits and the young birds of the 
Maguari Stork, also accompanied by photographs, is given 
by Sen. M. Fernandez, of La Plata. Those curious external 
insect parasites which prey on Birds and some Mammals, 
and which form the group Mallophaga, have been a good 
deal studied of late years. Sen. E. Lahilie has collected and 
published a list of all those which are found on Argentine 
birds. They perhaps should not be regarded as parasitic, 
but rather as epizoic, as they do not appear to injure their 
host in any way, but feed on the epidermal products, such 
as the feathers and hairs. Little attention has been paid to 
the birds of the “ chaco ” region of north-western Argentina, 
since Prof. Graham Ker visited it in 1890-1, and we are 
glad to see in the present volume a long article on the birds 
of this region by Senor E. L. Arribalzaga. Finally, we 
must mention Dr. B. Dabbene’s own contributions to the 
volume. He has completed an account of the Argentine 
Penguins with descriptive keys, ranges and distribution, 
and outline figures to illustrate the differences of the seven 
