1921 .] Recently published Ornithological Works. 557 
Saunders on the birds of Montana. 
[A distributional list of tbe birds of Montana, with notes on the 
migration and nesting of the better known species. By Aretas A. 
Saunders. Pacific Coast Avifauna of the Cooper Ornithological Club, 
no. 14, pp. 1-194; map and 35 figs, from photos. Berkeley, California, 
1921.] 
The State of Montana is nearly three times the size of 
England ; it lies along the northern boundary of the United 
States, and its western third is traversed by the Rocky 
Mountains, which, however, do not rise above an elevation 
of 11.000 feet, while its eastern two-thirds consists of 
plateau land forming the prairies. Settlement of Montana 
came rather late, but much development has taken place 
during the last ten years and has brought about many 
changes in the bird-life. The Trumpeter-Swan, the Sand¬ 
hill and Whooping Cranes, the Sage-Hen and Long-billed 
Curlew, formerly common, are now becoming rare owing to 
closer settlement, and Mr. Saunders has done well to place 
his observations and those of his predecessors on record. 
A short introduction is followed by a chapter on dis¬ 
tributional areas in Montana, illustrated by a sketch-map. 
The list of species with their status and selected breeding 
and migration records occupy the greater part of the volume, 
and after this comes the introduced species and hypothetical 
list. The number of species recorded is 332. The work 
appears to have been very carefully done and will doubtless 
form a standard list of the birds of the State for some time. 
The text is enlivened by a number of photographs of nests, 
eggs, and birds by various contributors excellently well 
reproduced. 
Sbderberg on Australian Birds. 
[Results of Dr. E. Mjoberg’s Swedish Scientific Expeditions to 
Australia, 1910-1913. xviii. Studies of the Birds of North-West 
Australia, by Rudolf Soderberg. Kungl. Svenska Vetens. Akad. Handl. 
Bd. 52, no. 17, pp. 1-116; 3 pis., 25 text-figs. 1918.] 
In 1910-13 Mr. Soderberg, a Swedish ornithologist who 
has recently been paying a visit to this country, accompanied 
