[1921] 
XV. Aves. 
Aves. 9 
197. — Eckardt, W. R. Die neueren 
Ergebnisse der Vogelzugforschung in 
Nord-amerika. Ein erweitertes, 
kritisches Referat. J. Ornith. Leipzig 
69 1921 pp. 469-504. 
198. — Eckardt, W. R. Die Vogel- 
zugbeobachtungen in Verbindung mit 
dem oeffentlichen VVetterdienst im 
Fruhling 1920. J. Ornith. Leipzig 69 
1921 pp. 570-572. 
199. — Edwards, H. V. A south- 
coastal Selbourne [Birds of Bega 
N.S.W.]. Emu Melbourne 21 1921 pp. 
42-48. 
200. — Egge, G. Feststellung und 
Bekampfung der Gefliigeltuberkulose 
mit Hilfe von Tuberkulin. Arch. 
Tierheilk. Berlin 47 1921 pp. 175-197. 
201. — Elliott, J. S. Pied Flycatcher 
nesting in Worcestershire. Bt. Bds. 
London 15 1921 p.43. 
202. — Evermann, B. W. Notes on 
the birds of Carroll, Monroe and Vigo 
Counties, Indiana. Proc. Indiana 
Acad. Sci. Fort Wayne for 1920 1921 
pp. 315-401. 
203. — Evermann, B. W. & Clark, 
H.W. Lake Maxinkuckee. 2 vols. pp. 
660-|-512 many illustr. [birds vol. i pp. 
481-579J. (State of Indiana) 1920. 
204. — Ewart, J. C. The nestling 
feathers of the Mallard, with observa- 
tions on the composition, origin and 
history of feathers. Proc. Zool. Soc. 
London 1921 pp. 609-642 10 pis. 14 
text-figs. 
205. — Ferguson, E. W. Notes on 
some Australian Tubinares — Petrels 
and Albatrosses. Emu Melbourne 21 
1921 pp. 104-114. 
206. — Fernandez, M. Sobre algunan 
embriones de Cripturidos. Rev. Mus. 
La Plata Buenos Aires 25 1921 pp. 70- 
96 3 pis. 7 text-figs. 
Festa, E. vide Salvadori. 
207. — Fiebrig, C. Algunos datos 
sobre aves del Paraguay. Hornero 
Buenos Aires 2 1921 pp. 205-213 
9 figs. 
208. — Finch-Davies, C. C. The 
birds of Tsumeb and Ovamboland. 
Bull. S. Afr. Biol. Soc. Pretoria No. 2 
1918 pp. 25-40. 
209. — Fisher, M. L. Birds singing at 
night. Proc. Indiana Acad. Sci. 
Fort Wayne for 1919 1921 pp. 239-240. 
210. — Fjeldberg, H. Foregar der 
forrykkelser i var fuglefauna ? Norsk 
Orn. Tids. Stavanger No. 1 1921 
pp. 45-50. 
211. — Fleming, J: H. Notes on the 
hypothetical list of California birds. 
Condor Berkeley 23 1921 pp. 95-96. 
212. — Fletcher, T. B. & Inglis, C. M. 
Some common Indian birds. Nos. 7— 
12 — Gopsychus saularis, Arachnechthra 
asiatica, Oriolus luteolus, Terpsi- 
phone paradisi . Zosterops palpebrosa. 
Agric. J. Ind. Calcutta 16 1921 pp. 4-6 
121-126 231-234 359-364 479-482 
595-597 6 col. pis. 
213. — Forbush, E. H. How much 
do Loons use their wings under water ? 
Bui. Essex Co. Orn. Cl. Salem 1921 
pp. 38-43. 
214. — Forrest, H. E. Remarkable 
varieties of Magpie. Brit. Bds. London 
15 1921 p. 41 
215. — Forrest, H. E. Birds. Record 
Caradoc. F. Cl. Wellington Shrops. 
for 1920 1921 pp. 16-22. 
216. — Forsius, R. Om ott fall av 
hopvuxna tvillingar hos gr’i ilugs- 
napparen. Medd. Soc. Faun. FI. 
Fenn. Helsingfors 47 1921 pp. 7-8 
218. 
217. — Foster, N. H. Annotated list 
of the birds of Hillsborough. Proc. 
Belfast N. H. Soc. for 1920-21 1922 
pp. 22-38 3 photos. 
Foster, N. H. vide Burkitt. 
218. — Frase, R. Ueber das Vorkom- 
men des Uhus. Bubo bubo L. im Kreise 
Dt. -Krone, Westpr. Zs. Oologie 
Neumark 26 1921 pp. 15-17. 
219. — Freuchen, P. Fuglelivet i 
Nordvestgronland. Iagttagelser fra 
mit vindne. Dansk Orn. Tids. 
Kjobenhavn 15 1921 pp. 101-108 
photo. 
220. — Friend, A. Frog eating a bird. 
[Megalurus gramineus ]. Emu. Mel- 
bourne 21 1921 p. 68 fig. 
221. — Froggatt, W. W. Some usefu 
Australian Birds, pp. 1-85 col. pis. 
Sydney (Govt. Printer) 1921 8vo. 
