70 Aves. 
Subject Index — Ethology. 
5819 
1561 : Fleet rophenax nivilis ; Proger & 
Paterson, 1146 : Aimophila ruficeps 
sr.otti ; Willard, 1612: Junco oreganus ; 
Thayer, 1471. 
Ioteridae : Molothrus bonariensis, 
M. rufo- axillaris , M. badius ; Grant, 
532. 
Paradiseidae : Eggs of various species 
described and figured ; Ogilvie-Grant, 
1026 ; Rothschild, 1239. 
Ptilonorhynciiidae : Ptilonorhynclius 
minor ; White, 1594 : Chlamydodera 
metadata ; Jackson, 708. 
Corvidae : Finn pica ; Meyere, 955 ; 
Jourdain, 727 ; Garrulus glandarius ; 
Boxberger, 162. 
Oology {see also under Nidification). 
Catalogue of the Bird’s Eggs in the 
Natural History Museum London vol. 5 
(Zosteropidae-Streperidae) ; Ogilvie- 
Grant, 1023. 
Oologia universalis palaearctica Lfg. 
73-77 ; Krause, 787. 
Erythrism in eggs ; Jourdain, 727. 
Notices of abnormally coloured and 
marked eggs ; Bunyard, 207, 208. 
Some abnormally coloured palaearctic 
eggs ; Bamberg, 80. 
The odd or abnormal egg generally 
found in a clutch ; Colthrup, 311. 
# Blue eggs of Terns and Gulls dis- 
cussed ; Dunlop & others, 410. 
Unpigmented eggs of the Ringed 
Plover and Common Tern ; Rowan, 
1249. 
Great. Auk eggs in the Thayer 
museum. (Plautus impennis ) ; Thayer, 
1468. 
Das Eischalenkorn der europiiischen 
Geierarten; Szielasko, 1451. 
Abnormal Kestrel’s egg laid in 
captivity ; Patten, 1085. 
Voice. 
Bemerkungen zu A. Voigts Problemen 
der Vogelstimmenkunde ; Braun, 175. 
Ober don Gesang ; Braun, 173. 
Ober anomale Lautausserungen der 
Vogel, insonderheit das Sprechenlernen 
der Papageien ; Braun, 174. 
Wann und weshalb rufen die nacht- 
lichen Wanderer ; Hagen, 570 p. 472. 
Morning and evening bird-song in 
New Hampshire (J.S.A. ; Wright, 1646. 
On the “ drumming ” of Snipes and 
Woodcocks; Bahr, 66. 
On the call note or song of the follow- 
ing : — Lopliortyx calif ornica, Maillard, 
902 ; TIaliaetus leucorhyphus, Magrath, 
896 : Asio accipitrinus and Circus 
aeruginosas Hesse, 656 ; Muscicapa 
grisola, Hoffmann, 675 : Terpsiphone 
paradisi , Magrath, 894 : Dumetella 
carolinensis , Bailey, 71 : Parus p. 
longirostris and P. a. rlienanus, Meyere, 
956: Lanins senator, A crocephalus 
palustris, Erithacus cyanecula, Pratin- 
cola rubetra ; Stadler, 1397. 
Psychology. 
Some remarks on bird psychology and 
instinct; PlaCsek, 1132. 
Some preliminary observations on the 
development of instincts and habits in 
young birds; Kuhlmann, 793. 
The .development of certain instincts 
and habits in chicks ; Breed, 177. 
Besitzen unsere Vogel eine instinktive 
Furcht vor deni Raubvogel ? Braess, 
168. 
Preference of birds for red flowers ; 
Graenicher, 530. 
The persistence of instincts among 
wild ducks in captivity ; Meilheurat, 
936. 
Organisation of the gull community ; 
Herrick, 646. 
Orientation in the passenger pigeon 
and the theories which explain it ; 
Thauzi&s, 1465. 
Colour and Moult. 
The phylogenetic value of colour 
characters in birds ; Stone, 1415. 
The soundness of evidence drawn 
from experiments on birds in captivity 
in regard to protective colouration, 
discussed ; Butler, 222. 
The cause of iridescent colouration in 
birds ; Mallock, 905. 
The metallic colouration of feathers on 
the neck of the domestic pigeon ; Strong, 
1425. 
Feather coloration in the Starling ; 
Stubbs, 1431. 
