200 Recently published Ornithological Works. 
account of the nesting of the Great Blue Heron (Herodias 
alba) in Montana, with two plates; and Mrs. Irene G: 
Wheelock describes the breeding-habits of the Green Heron 
(Butorides virescens), with an illustration of the young at 
the age of one week. The “preliminary sketch” of the 
“ Birds of Louisiana,’ commenced in the January number by 
Messrs. Beyer, Allison, and Kopman, is concluded in July, 
and we now await the List. The unusual abundance of the 
Snowy Owl during the winter of 1905-6, when over 800 
were recorded from Nova Scotia westward to Nebraska 
and between Manitoba in the north and Missouri in the 
south, forms the subject of a carefully-compiled paper by 
Mr. Ruthven Deane. In Western Mexico, Mr. H. H. Bailey 
landed at San Blas in order to visit the Tres Marias and 
Isabel Islands; the photographs of the Boobies, Frigate- 
birds, and Tropic-birds in their breeding-haunts are as good 
as the descriptions. ‘‘ A-Birding in an Auto,” by Mr. M.S. 
Ray, is an account of a run down the coast of California 
from Stockholm to Los Angeles, and back by an inland 
route, on which the Californian Condor was seen in two 
localities. Mr. James H. Fleming’s account of the Water- 
birds of Toronto, Lake Ontario, is especially mteresting, 
because the area described “lies directly in the path of a 
great migratory route equidistant from the Atlantic, the 
Mississippi and James Bay ” [southern end of Hudson Bay]. 
Mr. C. W. Beebee gives the. results of his experiments with 
a living example of Larus atricilla from February to April. 
He shews (in a manner which is quite convincing to the 
writer of this notice) that no increase of colour takes place 
in the individual white feather of winter, and that every 
feather which is dark slate-coloured in spring starts so from 
its sheath. He also states that durmg the moult “ the 
entire sheath of the mandibles peels off; in one case a large 
piece coming off at once, showing the fresh horn beneath 
bright carmine in colour.” Among the “ General Notes ” 
is a record of an Eskimo Curlew (Numenius borealis) which 
came on board the 8.8. ‘ Baltic,’ bound for New York, about 
2pm. on May 26th, 1906, midway between Ireland and 
