ACCJPITRIFORMESj 8TRIGES. 
Aves 47 
Subfamily Falconing. 
1 Lagopterus , n. g. Type, L. minutus, n. sp. (fossil) ; F. P. Moreno & 
A. Mercerat, An. Mus. La Plata, i, pi. xviii, fig. 7 [= Asthenopterus/ 
nom. emend, pro Lagopterus , preocc., F. Ameghino, Rev. Arg. i, p. 443.] 
* Foetopterus , n. g. (fossil), iid. t. c. p. 26. F. ambiguus, n. sp. (fossil), 
iid. t. c. p. 26, pi. xviii, fig. 6. 
Milvus migrans, figured ; Lord Lilford, Col. Fig. Br. Birds, part xix. 
Fernis apivorus , nesting in Yenetia; A. P. Ninni, Boll. Soc. Nat. 
Napoli, 1891, No. 9, pp. 109 & 110. 
Fernis apivorus orientalis , n. subsp., E. Siberia ; L. Taczanowski, M6m. 
Ac. Petersb. (7) xxxix, pp. 50-52. 
Falco babylonicus breeding in the Waziri country ; D. C. Piiilpot, 
Ibis, 1890, pp. 467 & 468. F. barbarus in Malta ; H. E. Dresser, op. cit. 
1891, p. 363. F. cesalon, figured ; Lord Lilford, Col. Fig. Br. Birds, 
part xix. F. pisanus, n. sp. (fossil), A. Portis, Oru. Yald. pp. 14 & 15, 
tav. i, figs. 27 a & 275. 
Ilierofalco gyrfalco , figured ; R. B. Siiarpe, Sci. Results Yark. Miss., 
Aves, pi. i : in Sussex ; W. Borrer, B. of Sussex, pi. i. II. gyrfalco 
and allies in Germany ; E. Hartert, Orn. Jahrb. ii, pp. 100-103, 208, & 
209. II. islandus , in Norway ; R. Collett, Forh. Selsk. Chr. 1890 [1891], 
No. 4, pp. 7-10 : in Labrador ; J. A. Harvie-Brown, Auk, viii, p. 236. 
Falco candicans , figured ; Lord Lilford, Col. Fig. Br. Birds, part xvii. 
Ilierofalco attaints , n. sp., Altai Mts., M. A. Menzbier, Orn. Turkest. 
p. 272. 
Gennaia salcer gurney i t n. subsp., S.E. Russia, id. t. c. p. 
Ilierofalco milvipes distinct from II. salcer ; R. B. Siiarpe, Sci. Results 
Yark. Miss., Aves, pi. ii. II. salcer , figured ; id. t. c. pis. xvi-xix. 
Cerclmeis vespertina : memoir by Petenyi ; O. Herman, Lebensbild 
Petenyi, pp. 47-90, cum tab. C. vespertinus , in Roxburghshire ; W. 
Evans, Hist. Berwick Nat. Club, xii, pt. 2, p. 394. 
Falco cenchris , in Ireland ; A. G. More, Ibis, 1891, pp. 297 & 298, and 
Zool. xlix, p. 152 : in Scilly ; J. H. Jenicinson, t. c. p. 153. F. domini- 
censis not distinguishable from F. sparverioides ; R. Ridgway, Auk, viii, 
pp. 113 & 114. 
Suborder PANDIONES. 
Pandion halicetus : peculiar structure in tho skull ; R. W. S.iufeldt, 
Auk, viii, pp. 236 & 237. 
Order STRIGES. 
See Bolau, H., and also Jackson, T. H. 
Scops giu, in Scotland; G. Sim, Scot. Nat. 1891, p. 192. S. balli , 
figured ; R. B. Siiarpe, Sci. Results Yark. Miss., Aves, pi. xx. S. bracii , 
figured ; id. t. c. pi. ii, and M. A. Menzbier, Orn. Turkest. pi. viii. 
