12 Aves. 
XVII. Aves. 
Brown, N. 0. Recent winter occur- 
rences of two hawks in Maine. Auk 
Cambridge Mass. 28 1911 (265). 187 
Brown, N. C. A remarkable number 
of Robins in Maine in winter. Auk 
Cambridge Mass. 28 1911 (270-272). 
188 
Brown, N. C. Winter ranges of Geese 
on the Gulf Coast ; Notable bird records 
for the same region. Auk Cambridge 
Mass. 28 1911 (272-274). 189 
Brown, W. J. Some Newfoundland 
bird notes — May, June, July, 1911. 
Ottawa Nat. 25 1911 (89-94). 190 
Bruce, Sir D. and others. Experiments 
to ascertain if the domestic fowl of 
Uganda may act as a reservoir of the 
virus of sleeping sickness (Trypanosoma 
gambiense). London Proc. R. Soc. B 83 
1911 (328-334), 191 
Brtickner, 0. Yom Instinkt der 
Vogel, besonders hinsichtlich ihrer 
Fortpflanzung, betreffs Aussetzung der 
Jungen und Abwoichungeu von den 
Gowolmheiteu im Nostbau. Gelied. 
Welt Magdeburg 40 1911 (58-59 66-68 
74-75 82-83). 192 
Brttning. Zur ,, Urbanisierung des 
Gimpels.“ Ornith. Monatschr. Magde- 
burg 36 1911 (261-262). 193 
Bryant, H. C. The relation of birds 
to an insect outbreak in northern 
California during the spring and summer 
of 1911. Condor Hollywood Cal. 13 
1911 (195-208). 194 
Btichner, W. Zwergmove (Laima 
minutus) bei Cothen (Anhalt). Ornith. 
Monatschr. Magdeburg 36 1911 (448- 
449). 195 
Bucknill, J. A. A further contribution 
to the ornithology of Cyprus. Ibis 
London 1911 (632-656). 196 
Bujard, E. Etude des types 
appendiciels de la muqueuse intestinale, 
en rapport avec les regimes alimentaires. 
Morphologic compare. Sitiomorphoses 
naturelles et exp4rimentales. Intern. 
Monatschr. Anat. Leipzig 26 1909 (101— 
196) 5 Taf. 197 
Bunyard, P. F. Abnormally marked 
eggs. London Bull. Bt. Orn. Cl. 27 191 1 
(48-49). 198 
Bunyard, l*. F. Noto on somo rare 
eggs. London Bull. Bt. Orn. Cl. 29 1911 
(44-45). 199 
[1911] 
Bureau, L. Sur les Canards siffleurs 
hupp^s ( Nettia rufina Pallas) observes 
dans le nord-ouest de la France. Paris 
Rev. Fr. d’Orn. 1 1910 (244-245). 200 
Bureau, L. Sur le capture en France 
d’un pigeon migrateur d’Am6rique, 
Ectopistes migratorius (Lin.). Paris 
Bui. soc. nat. acclim. 58 1911 (353-356). 
201 
Bureau, L. L’age des Perdrix. 
Nantes Bui. soc. sci. nat. 3. ser. 1 pt. 3 
1911 (1-124). 202 
Burg, G. de vide Fatio et Studer. 
Bums, F. L. A monograph of the 
Broad-winged Hawk ( Buteo platyptenis). 
Wilson Bull. Oberlin Ohio 23 1911 
(139-320) 10 pis. 203 
Burt, H. C. An early spring trip to 
Anacapa island. Condor Hollywood 
Cal. 13 1911 (164-167). 204 
Burtch, V. A nest of the Florida 
Gallinule. Auk Cambridge Mass. 28 1911 
(108-109). 205 
Burtch, V. Black Vulture in Stuben 
county, N.Y. — A correction. Auk 
Cambridge Mass. 28 1911 (112). 206 
Butler, A. G. Duration of life in 
captivity. Avicult. Mag. London 2 1911 
(179-182). 207 
Butler, A. L. Notes on the migration 
of the Sprosser and Common Nightin- 
gales. Avicult. Mag. London 3 1911 . 
(58-59). 208 
Butler, A. L. The Finches and W ea ver 
Birds of the Sudan, being notes on the 
group containing the birds injurious to 
grain crops. Khartoum - Rep. Well- 
come Res. Lab. 4B 1911 (157-177) 
pis. xii-xiii. 209 
Butterfield, E. P. Notes from York- 
shire. Zoologist London 15 1911 (389- 
391). 210 
[Buturlin, S. A.] EyTypjunrc., O. A. 
HoBaa fljia Poccin irnma: Lanius 
senator niloticus (Br.). [A new Russian 
bird : Lanius senator niloticus (Br.).] 
Mess, ornith. Moskva 21911 (16-17). 211 
[Buturlin, S. A.] ByiypjiHii'L, C. A. 
HoBau fljia Poccin BaBiipyiiuca. 
[Spermolegm fulvcacena dreaaeri (Hart.) 
in Russia.] Mess, ornith. Moskva 2 1911 
(17-18). 212 
