1905-1906. Sir Walter Buller. Supplement to the "Birds of New Zealand." Two volumes.
(Though containing very interesting notes on extinct and threatened birds, these two volumes are rather disappointing. They contain very little that is new, and are mainly composed of quotations from other people's writings or letters. Buller's former great book on the Birds of New Zealand was a most important and creditable work, though not without shortcomings. Our knowledge of New Zealand Birds might have been brought up to date in his supplement, but we cannot say that this has been done properly, and errors are frequent.)
1906. Baldwin Spencer. The King Island Emu.
In The Victorian Naturalist XXIII (1906), pp. 139, 140.
(Dromaius minor described.)
1907. Walter Rothschild. On Extinct and Vanishing Birds. A short Essay on the Birds which have presumably become extinct within the last 500 years, and also of those birds which are on the verge of extinction, including a few which, though not yet so far gone, are threatened with extinction in the near future.
In Proceed, of the IV Intern. Ornith. Congress, London 1905, pp. 191-217.