13 Aves. 
Titles. 
5800 
Duerden, J. E. Breeding experi- 
ments with North African and South 
African Ostriches. iv. Increasing the 
number of plumes : degeneration and 
restoration. v. Crossing the North 
and South African Ostriches. vi. 
Degeneration. Pretoria Dept. Agr. 
Union of S.A. Bull. No. 7 1918 (1- 
39) No. 3 1919 (1-36) No. 7 1919 (1- 
56) many figures. 210 
Duerden, J. E. A new adaptive 
callosity in the Ostrich. Grahamstown 
Roc. Albany Mus. 3 1919 (190-195) 
1 pi. 211 
Dupond, C. Le Guillemot do Brun- 
nich on Belgique {Uria 1. lomvia) (L.) 
Gerfaut Bruxelles 1919 (87-93) illustr. 
212 
Dwight, J. Reasons for discarding 
a proposed race of the Glaucous Gull 
{Larns hyperhorcus). Auk Cambridge 
Mass. 86 1910 (2-1 2-248) 2 text-figs. 
213 
Dwight, J. The relationship of the 
Gulls known as Larus fuscus and Larus 
affinis. Auk Cambridge Mass. 36 
1919 (542-546) 2 pis. 214 
Dwight, J. Description of a new 
race of the Western Gull. Washington 
Proc. Biol. Soc. 32 1919 (11-14). 215 
Earl, T. M. Harris Hawks in Ohio. 
Wilson Bull. Oborlin Ohio 30 1918 (15- 
16). 216 
Eckardt, W. R. Warum Jiiohen 
grbsscro Zugvogcl in dor bekannten 
Keilform ? Orn. Monatsber. Berlin 27 
1919 (45-50). 217 
Edwards, L. A. C. Continental Jays 
in Oxfordshire and Sussex. Brit. Birds 
London 13 1919 (107). 218 
Eifrig, C. W. G. Notes on birds of 
the Cliieago area and its imniodiatG 
vicinity. Auk Cambridgo Mass. 86 
1919 (513-524). 219 
Eifrig, C. W. G. The birds of the 
sand dunes of north-western Indiana. 
Brookville Ind. Proc. Indiana Acad. 
Sci. for 1918 1919 (280-303). 220 
Ekama, II. Hot verblijf van enkelo 
trekvogels in Nederland in 1918. 
Ardea Wagoningon 8 1919 (94-104). 
221 
Ekblaw, W. E. Finding the nest 
of the Knot. Wilson Bull. Oberlin 
Ohio 30 1918 (97-100). 222 
Ekblaw, W. E. The food-birds of 
the Smith Sound Eskimos. Wilson 
Bull. Oberlin Ohio 31 1919 (1-5). 223 
Ekblaw, W. E. The Snow Bunting, 
an arctic study in black and white. 
Wilson Bull. Oberlin Ohio 31 1919 (41- 
45). 224 
Enomoto, Y. Migration and habits 
of Swallows in Shikoku. Tori Tokio 2 
No. 8 1919 [Japanese]. 225 
Erichsen, W. J. Some summer birds 
of Liberty county, Georgia. Auk Cam- 
bridge Mass. 36 1910 (380-303 590-501). 
226 
EfvansJ, W. The late Captain 
Sydney E. Brock. Scot. Nat. Edin- 
burgh 1919 (27-28). 227 
Evans, W. The Great Crested Grebe 
in Forth. Scot. Nat. Edinburgh 1919 
(49-50). 228 
Evans, W. Woodcock and the 
safety of their young. Scot. Nat. Edin- 
burgh 1919 (51-54) ; also Brooksbank, 
E. (95-96). 229 
Evermann, B. W. Nesting of the 
Wilson Snipe {Gallinago delicata) in 
California. Condor Hollywood Cal. 
21 1919 (121), also E Wail (207-209). 
230 
Falz-Fein, F. v. Vortrag iibor die 
Vogolwelt von Askania-Nova (Taurien). 
J. Ornith. Loii)zig 67 1010 (227-220). 
231 
Farley, F. L. The White Pelican, 
Pehcanns erythrorhyncJios, in Alberta. 
Canada Fiolti-Nat. Ottawa 33 (38-39). 
232 
Farley, J. A. Early arrival of the 
Tree Swallow in Plymouth, Mass. 
Auk Cambridge Mass. 38 1919 (577- 
579). 233 
Parwell, E. I). Bird Observations 
near Chicago (1-102) Chicago (privately 
printed) [191 9J. 234 
Faxon, W. Capt Thomas Brown’s 
‘Illustrations of American ornithology of 
Wilson and Bonaparte.’ Auk Cam- 
bridge Mass. 36 1019 (623-626). 235 
Fechner vide Schuster. 
Ferdinand, J. Skadegog {Coccysfes 
glandarius (L.) i. Danmark. Coccystes 
glandarms found in Denmark. Koben- 
havn Ornith. Tids. 13 1919 (212-213). 
230 
