42 Aves. 
XVII. Aves. 
[1911] 
Ogilvie Grant, W. R. Sylviella lowei 
sp. n. described. London Bull. Brit. 
Orn. Cl. 27 1911 (105). 987 
Ogilvie-Grant, W. R. [Sp. et subsp. 
n. described.] London Bull. Bt. Orn. 
Cl. 29 (25-29). 988 
Ogilvie-Grant, W. R. Sericornis 
arnensis sp. n. etc. described. London 
Bull. Bt. Orn. Cl. 29 1911 (29). 989 
Ogilvie-Grant, W. R. Laniarius 
mufumbiri and Motacilla uellsi spp. n. 
described. London Bull. Bt. Orn. Cl. 
29 1911 (30). 990 
Ogilvie-Grant, W. R. Seasonal 
change ol plumage in the Partridge 
( Perdix ; perdix ) and Ptarmigan (Lag opus 
mutus). Loudon Bull. Bt. Orn. Cl. 29 
1911 (39-43). 991 
[Ogilvie-Grant, W. R.] Eugene Wil- 
liam Oates — obituary notice. London 
Bull. Bt. Orn. Cl. 29 1911 (45-47). 992 
Ogilvie-Grant, W. R. vide Bates. 
Ogilvie-Grant, W. R. vide Millais. 
Ogilvie Grant, W. R. vide Witherby. 
[Ognev, S. I.] OrneBT>, C. II. 
OpuiiTOJiornqecKiH HafonofteHia B r i» 
Mockobckoh ry6epnin. [Ornithologi- 
sche Beobachtungen im Moskauer 
Gouvernement.] Mess, ornith. Moskva 
2 1911(121-133). 993 
[Ognev, S. I.] OrHeB'i>, 0. II. 0 
irkiiiH nTHii 1 r b h ciioco6hocth . nxT> kt> 
no/tpajKaniio. [Ueber den Gesang der 
Vogel und deren Befahigung zur Nach- 
ahmung.] Ochotn. v6st. Moskva 11 
1911 (180-188 190-199). 994 
Oliver, K. IC. On the displacement 
of the optic lobes during the develop- 
ment of the brain of the fowl. Mel- 
bourne Proc. R. Soc. Viet. 24 1911 (78- 
91) pis. xxv-xxxv. 995 
Olofsson, V. Nagot om lappugglans 
fortplantning. [Notes on the breeding 
of Syrnium lapponicum. ] Fauna und 
Flora Uppsala 5 1910 (180-183). 996 
Onelli, C. Cambio de plumaje en los 
condores precio de sus alas. Rev. Jard. 
Zool. Buenos Aires 6 1910 (233-235). 
997 
Oort, E. D. van. On two rare petrels 
Oceanodroma monorhis and Aestrelata 
aterrima. Leiden Notes Mus. Jentink 
33 1911 (111-112). 998 
Oort, E. D. van. An undescribed 
form of Microglossus aterrimus. Leiden 
Notes Mus. Jentink 33 1911 (239-240). 
999 
Oort, E. D. van. . Report on birds 
from the Netherlands received from 1 
September 1910 till 1 September 1911. 
Leiden Notes Mus. Jentink 34 1911 (37- 
43). 1000 
Oort, E. D. van. On a small collection 
of birds from Mount Tengger, East Java. 
Leiden Notes Mus. Jentink 34 1911 (44- 
50). 1001 
Oort, E. D. van. Eudynamis minima, 
an apparently new cuckoo from south- 
western New G uinea. Leiden Notes Mus. 
Jentink 34 1911 (54). 1002 
Oort, E. D. van. Bird-marking in (lie 
Netherlands. Leiden Notes Mus. Jentink 
34 1911 (55-58). 1003 
Oort, E. D. van. On some new or rare 
birds from Sumatra, Java, Ceram and the 
Poeloe Toedjoe group, north of Ceram. 
Leiden Notes Mus. Jentink. 34 1911 (59— 
65). 1004 
Oort, E. D. van. On the catalogue 
of the collection of birds brought to- 
gether by A. Vroeg. Leiden Notes Mus. 
Jentink 34 1911 (66-69). 1005 
Osawa, G. Ueber die Bursa Fab- 
ricii der Vogel. Tokyo Mitt. med. 
Fuc. 9 1911 (299-341) 4 pis. 1006 
Osburn, P. I. Collecting Socorro and 
Black Petrels in Lower California. Condor 
Hollywood Cal. 13 1911 (31-34). 1007 
Osburn, P. I. Notes on two birds from 
Santa Catalina Island, California. Condor 
Hollywood Cal. 13 1911 (76). 1008 
Osmaston, B. B. The Himalayan 
Greenfinch (Jlypaeanthus spmoides.) 
Bombay J. Nat. Ilist. Soc. 20 1911 (852). 
1009 
Ottow, B. Falco gyrfalco in den russi- 
schen Ostseeprovinzen. Ornith. Monats- 
ber. Berlin 19 1911 (15-16). 1010 
[Pacoskij, I. K.] nanocKin, I. K. 
K'l opHino(|)ayirk XepcoucKoiI rydep- 
Hia. [Zur Avifauna des Gouvernements 
Chersson.] Mess, ornith. Moskva 2 1911 
(212-223). 1011 
[PaSoskij.] IlaqocKiii. Ytkhhhbobl- 
eB'L jUidsripa. [Die Enten der Niede- 
rungen des Dniepors.] Ochotn. gazeta 
Moskva 39 1911 (434-436). 1012 
