36 Aves. 
XVII. Aves. 
[1906] 
Ogilby, J. Douglas. The principles 
of migration. Emu, Melbourne, 5, 1906, 
(225-226). 
Oldham, C. 1. Eider ( Somateria 
, mollissima ) in Cheshire. Zoologist, 
London, 10, 1906, (76). 
Oldham, C. 2. Notes on the Little 
Grebe ( Podicipes fluviatilis). Zoologist, 
London, 10, 1906, (351-353). 
Omensetter, Sanford vide Fussell, L. 
Oort, E. D. van. 1. On a new bird 
of paradise. Leiden, Notes Mus., Jen- 
tink, 28, 1906, (129-130). 
Oort, E. D. van. 2. Somateria mol- 
lissima Brutvogel in Holland. Ornitli. 
Monatsber., Berlin, 14, 1906, (173-174). 
Oppel, Albert. 1. Verdauungsap- 
parat. Anat. Iiefte, Wiesbaden, Abtli. 15, 
Abt. 2, 1906, [Aves], (238). 
Oppel, A. 2. Atmungsapparat. Anat. 
Hefte, Wiesbaden, 15, Abt. 2, 1906, 
[Aves], (310). 
Osgood, Fletcher. 1. The towhee 
nesting in bushes. Auk, Cambridge, 
Mass., N. Ser., 23, 1906, (462-463). 
Osgood, F. 2. A robin’s nest without 
mud. Auk, Cambridge, Mass., N. Ser., 
23, 1906, (464). 
Osmaston, B. B. Notes on Andaman 
birds, with accounts of the nidification 
of several species whose nests and eggs 
have not been hitherto described. Bom- 
bay, J. Nat. Hist. Soc., 17, 1906, (156- 
163, 486-491). 
Otto, Benno. Aus dem Rauberleben 
des Lanius collurio. Ornitli. Monatsber., 
Berlin, 14, 1906, (172-173). 
Otto, Hugo. Zwei seltsame Erschei- 
nungen in der Vogelwelt. Zs. Oologie, 
Berlin, 16, 1906, (81-86). 
Ottosson, O. Ueber die Eier der 
Rosenmove, Rhodostethia rosea (Macg.). 
Zs. Oologie, Berlin, 16, 1906, (133). 
Oustalet, Emil. Obituary ; vide 
Hellmayr, 17. 
[P.,G. 1.1 1. IL,T.H. HOMhGLHJIIl 
BLipoflOicL ? [Bastard oder SpielartV] 
Psov. i ruiejn. ochota, Moskva, 12, 
1906, (337). 
[P., G. 1.] 2. II., T. H. fMopaima 
bt> Mockobcko# rydepniii. [Full gala 
glacialis im Gouv. Moskau.] Psov. i 
.rufcejn. ochota, Moskva, 12, 1906, (355). 
[P., G. I.] 3. II., F. PI. O one- 
peinfi caMKiiuepneTii xoxjiaTOti. [Ueber 
das Gefieder der Reiherente.] Psov. i. 
ru2ejn. ochota, Moskva, 12, 1906, (531— 
533). 
[Pacoskij, I.] 1. navocuitt, IT. 
Bajn>,niiiitcii r L-aJiL6iiiioc r b. [Ein Wald- 
schnepl'en-Albino.] Psov. i ruzejn. 
ochota, Moskva, 12, 1906, (40). 
[Pacoskij, I.] 2. lla^ocKitf, PI. 
IlepeaeTLi yTOKT). [Der Flug der 
Enteu.] Psov. i ruzejn. ochota, Moskva, 
[Buchausgabe], 1906, 1, (156-160). 
Paddock, G. IP. Colour of the eyes 
in Coecothraustes vulgaris. Zoologist, 
London, 10, 1906, (109). 
Paessler. Ein Ausflug bei Coronol 
in Chile. Zs. Oologie, Berlin, 16, 1906, 
(27-30). 
Palmer, T[heodore] S[herman]. Addi- 
tional American records of the ruff. 
Auk, Cambridge, Mass., N. Ser., 23, 
1906,(98-99). 
[Pangalo, K. I.] IlaiiraJio, K. H. 
O CTpooniH rpediia y icyp r J>. [Ueber 
den Bau des Kammes bei den Hahnen.] 
Moskva, Ann. Inst, agron., 12, 1906, 1, 
(15-19). 
Paris, Paul. 1. Oiseaux d’Europe. 
Paris, Bui. ass. frang. avanc. sci., 1904, 
(263). 
Paris, P. 2. Sur la glande uro- 
pygienne des Oiseaux. Paris, Bui. soc. 
zool., 31, 1906, (101-107, fig.). 
Parker, E. vide Collett, A. 
Parker, G[eorge] H[oward]. Double 
hens’ eggs. [Cont. Mus. Comp. Zool., 
Harvard Coll., No. 173.] Amer. Nat., 
Boston, Mass., 40, 1906, (13-25). 
Parkin, T. 1. Lecture on extinct 
birds. Hastings, Ann. Rep. Nat. Hist. 
Soc., 1, 1906, (1-3, pis.). 
Parkin, T. 2. Visit to the heronry 
at Alder Shaw, Beckley, Sussex. 
Hastings, Ann. Rep. Nat. Hist. Soc., 1, 
1906, (42-43, pi. v). 
Parona, Corrado. Sdoppiamento del 
vessillo in due penne di polio. Genova, 
Atti Soc. ligustica sc. nat. geogr., 17, 
1906, (97-98). 
Parrot, [Carl]. 1. [ Certliia fami- 
liaris u. brachydactyla.] Miinchen, 
Verh. ornith. Ges., 6, (1905), 1906, (12;. 
