1 92 1.] Letters, Extracts, and Notest. 567 



List of other Ornithological Pub tic at ions received. 



Count Arriooni degli Oddi. Reprints of nine recent papers. 

 GuRNEY, J. H. Oruitliolog'ical Notes from Norfolk for 19:20. (Brit. 



Birds, xiv. pp. 242-252.) 

 Riley, J. H. Four new Birds from Celebes and Five new genera of 



Birds. (Proc. Biol. Soc. Washington, vol. 34, pp. 51-58.) 

 Withers Y (Edited by). A Practical Handbook of British Birds. 



(Pt. X.) 

 Auk. (Vol. xxxviii. no. 2.) 

 Avicultural Magazine. (Vol. xii. nos. 3-5.) 

 Bird-Lore. (Vol. xxiii. no. 2.) 

 Bird Notes. (Vol. iv. nos. 3-4.) 

 British Birds. (Vol. xiv. nos. 11-12.) 

 Brooklyn Museum Quarterly. (.Tan, 1921.) 

 Canadian Field Naturalist. (Vol. xxxiv. no. 8.) 

 Condor. (Vol. xxiii. no. 2.) 

 Emu. (Vol. XX. no. 4.) 

 Fauna och Flora. (1921, pt. 2.) 

 Gerfaut. (Vol. xi, fasc. 1.) 

 Irish Naturalist. (Vol. xxx. nos. 4-5.) 



Jaarbericht Club van Nederlandsche Vogelkuudiugen. (Vol. xi. pt. 1.) 

 Journal fiir Ornithologie. (Vol. 69, part 2.) 

 L'Oiseau. (Vol. ii. njs. 3-4.) 



Ornithologische Monatsberichte. (Vol. 29, nos. 5-6.) 

 Revue Fran9ai3e d'Ornithologie. (Nos. 144-145.) 

 Scottish Naturalist. (Nos. Ill, 112.) 

 South Australian Ornithologist. (Vol. vi. nos. 1-2.) 



XXX. — Letters, Extracts, and Notes. 



Plumages of Nestling Owls. 



Sir, — 111 the April nitmber o£ * The Ibis ' {antea, p. 348) 

 Mr. Bonhote refers to four plumages of the young Eagle- 

 Owl which he had described in the ' Bulletin B. O. C 

 (vol. xxvii. pp. 82-83). The question is of some import- 

 ance, as it involves the number of generations of plumage. 

 I should therefore like to point out that I cannot agree with 

 Mr. Bonhote that the Eagle-Owl has three generations of 



SER. XI. — VOL. III. 3 P 



