25 Aves. 
Titles. 
5800 
Ninni, E. Ibridismi e monstruositk 
in uccelli esistenti nella collezione 
Ornithologica Italiana- “ Zaffagnini- 
Bertocchi.” Riv. Ital. Orn. Bologna 5 
1920 (14-20) 1 pi. 547 
Nolf, P. Be Taction thromboplas- 
tique du chloroforme sur lo plasma 
d’oiseau et de mammif&ro. Paris C. R. 
Soc. Biol. 83 1920 (803-804). 548 
Noll-Tobler, H. Die Locktono der 
Vogel und ihre biologische Bedeutung. 
Verhandl. Schweiz. Nat. Ges. for 1919 
1920 (124-126). 549 
Nonidez, J. F. Studies on the gonads 
of the Fowl. i. Hematopoietic processes 
in the gonads of embryos and mature 
birds. Amor. J. Anat. Philadelphia Pa. 
28 1920 (81-107) 29 figs. 550 
Norman, E. S. Additions to the birds 
of Shoal Lake, Manitoba. Canad. Field- 
Nat. 34 1920 (154). 551 
Nyqvist, H. N&gra antockningar fr&n 
en resa i Danmark i ornithologiskt 
syfte. Fauna och Flora Uppsala 1920 
(75-88). 552 
Oberholser, H. C. The Hawk Owl in 
North Dakota. Empidonax griseus in 
Nevada. Auk Lancaster Pa. 37 1920 
(132-133). 553 
Oberholser, H. Fifth annual list of 
proposed changes in the A.O.U. Check- 
list of North American Birds. Auk 
Lancaster Pa. 37 1920 (274-285). 554 
Oberholser, H. C. Aeronautes melano- 
leuscus (Baird) versus A. saxatalis 
(Woodhouse). A new name for Phaeo- 
chroa Gould. Auk Lancaster Pa. 37 
1920 (294-295). 555 
Oberholser, H. C. Elminia Bona- 
parte preoccupied. Toxostoma cris- 
salts v. T. dorsalis. Auk Lancaster Pa. 
37 1920 (302-303). 556 
[Oberholser, H. C.] Seventeeth Sup- 
plement to the American Ornith- 
ologists’ Union Check-list of North 
American Birds. Auk Lancaster Pa. 
37 1920 (439-449). 557 
Oberholser, H. C. Tringa Auct. 
versus Calidris Anon. (451-452). A 
new name for Anairetes Reichenbach 
(453). Note on the generic names 
Schiffornis Bonaparte and Scotolhorus 
Oberholser (454—455) Auk Lancaster 
Pa. 37 1920. 558 
Oberholser, H. C. The migrations of 
North American Birds. With notes on 
the plumage by F. M. Chapman. Bird- 
Loro Harrisburg Pa. 22 1920 (90-92 
213-217 343-347). 559 
Oberholser, H. C. Description of a 
new Otocoris from California. Condor 
Hollywood Cal. 22 1920 (34-35). 560 
Oberholser, H. C. Some bird records 
• from Nebraska. Condor Hollywood 
Cal. 22 1920 (43). 561 
Oberholser, H. C. The nomenclature 
of families and subfamilies in zoology. 
Science Now York 62 1920 (142-147). 
562 
Oberholser, H. C. Diagnosis of a new 
genus of Timaliidae. Washington J. 
Acad. Sci. 8 1918 (394-395). 563 
Oberholser, H. C. Diagnosis of a new 
genus of Anatidae from South America. 
Washington J. Acad. Sci. 8 1918 (571— 
572). 564 
Oberholser, H. C. Grandalidae, a 
new family of turdine Passeriformes. 
Washington J. Acad. Sci. 9 1919 (405- 
407). 565 
Oberholser, H. C. Description of 
a new Clapper Rail from Florida. 
Washington Proc. Biol. Soc. 33 1920 
(33-34). 566 
Oberholser, H. C. Mutanda orni- 
thologica. Washington Proc. Biol. Soc. 
33 1920 (83-84). 567 
Oberholser, H. C. Descriptions of 
five new subspecies of Cyornis. Wash- 
ington Proc. Biol. Soc. 33 1920 (85- 
88). 568 
Oberholser, H. C. A synopsis of the 
genus Thryomane8. Wilson Bull. 
Oberlin 32 1920 (18-28). 569 
Oberholser, H. C. and McAtee, W. L. 
Waterfowl and their food plants in the 
Sandhill region of Nebraska. Washing- 
ton Bull. U.S. Dept. Agr. No. 794 1920 
(1-77) map 4 photos. 570 
Ogilvie, F. M. Field observations on 
British birds. Edited by H. Balfour 
(xvi 4- 226) 6 pis. 1 portr. 3 maps 
14 text-figs. London (Selwyn and 
Blount) 1920 8vo. 571 
Oort, E. D. van. Ornitologia Neer r 
landia. Do vogels van Nederland. 
Aflev 5-8 (121-152) pis. 41-80. ’s 
Gravenhage (Nyhoff.) 1920 4to. 38 cm. 
572 
