646 Recently published Ornithological Works. 
great interest. Mr. Haagner will pardon us for reminding 
him that Sclater was, we believe, the first writer who raised 
the Honey-guides to family rank (see his article in ‘The 
Ibis,’ 1870, p. 176), and emphasized their structural 
peculiarities. After Mr. Haagner’s paper Major Sparrow 
continues his valuable field-notes on South-African birds, 
Mr. Roberts gives us further information as to the curious 
breeding-habits of the Pin-tailed Widow-bird (Vidua princi- 
palis), and Messrs. Taylor and Bucknill contribute an 
excellent account of the birds met with in the Amsterdam 
district of the Transvaal, near the Swazi-land border. 
Other good articles by Mr. Symonds (on the birds of 
Kroonstad, Orange River Colony), by Dr. Turner (on his 
expedition into Portuguese East Africa), by Mr. Thomsen (on 
the Locust-birds of the Transvaal), and by Mr. Haagner and 
Mr. Ivy (on the birds of the Albany Division of the Cape 
Colony) follow, the last being illustrated by a well-drawn 
plate of eggs, amongst which is a figure of that of Irrisor 
viridis. We have here also further news of the parasitic 
breeding-habits of Indicator. Occasional notes and reviews 
conclude this very successful number of our contemporary. 
101. Thayer and Bangs on the Birds of Sonora. 
[Breeding Birds of the Sierra de Antonez, North Central Sonora. By 
John KE. Thayerand Outram Bangs. Pr. Biol. Soc. Washington, xix. p. 17.] 
In the breeding-season of 1905, Mr. W. W. Brown, Jr., 
made a collection of birds for Mr. Thaycr in the Sierra de 
Antonez in North Central Sonora, about 95 miles south of 
the Arizona boundary. The authors give us a list of them 
with a few notes. Mr. Brown took many sets of eggs, the 
most interesting of which were perhaps those of Aimophila 
(ser. Hemophila) maccleodii Brewster. Psaltriparus plumbeus 
cecaumenorum (?), a “well-marked southern form of P. plum- 
beus,” is described as a new species. 
102. Thayer and Bangs on a new Thrasher. 
[A new Race of the Californian Thrasher from Lower California. By 
John E. Thayer and Outram Bangs. Proc. New Engl. Zool. Cl. iv. p. 17.) 
Toxostoma redivivum helvum (the authors will kindly excuse 
