748 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [VolV. 



1869. EuLER, C. Notes on tbe Brazilian species of Strigidae. <^J.f.O.. xvii. 1869, 



pp. 242-249. 

 1869. GuNN, T. E. Early Nesting of the Bam Owl in Norfolk. < Zoologist, 2d ser. , iv, 



1869, p. 1721. 

 1869. HijGel, a. de. Snowy Owl in Ross-shire. < Zoologist, 2d ser., iv, 1869, j). 1863. 



1869. Linden, C.S. Nyctale albifrons [i.e., N. acadica juv.]. <^ Am. Xat., iii, 1869, 



p. 556. 

 Capture of an individual at Buflfalo, New York. 



1870. Anon. Nos Hiboux. <^Xaturaliste Canadien, ii, 1870,])]). 197-206, i^l. i. 



Snr lea StrigidUe du Canada. PI. I, Symium nebulosum (d'apres Audub.). 

 1670. Clifton, Lord. Supposed [entirely uncertain] Occurrence of the American 

 Mottled Owl [Scops] at Cobham, Kent. ^Zoologist, 2d ser., t, 1870, p. 2138! 

 1870. Clifton, Lord. Supposed Occurrence of Strix asio in Kenl. <^ Zoologist, 2d 

 ser., V, 1870, p. 2343. 

 Keaffinned. 



1870. Gurney, J. H. Supposed Occurrence of the American Mottled Owl [Scops 

 asio] in Kent. <^ZooIogist, 2d ser., v, 1870, p. 2221. 

 Leaves it open. 

 1870. Hadfxeld, H. Suj^posed Occurrence of the American Mottled Owl [Scops 

 asio] in Kent. < Zoologist, 2d ser., v^ 1870, ]). 2181. 

 Donbtfal. 

 1870. Hadfield, H. Supposed Occurrence of Strix asio in Kent. <^ Zoologist, 2d ser., 

 V, 1870, p. 2382. 

 Criticises his lordship severely. Editor interferes to stay fiuiher proceedings. 

 1870. Hawkins, H. S. [On the nesting of Nyctea nivea in Labrador.] <[7&iX 2d 

 ser.,vi, 1870, p. 298. 



1870. Streets, T. H. [On asymmetry in the skuU of an owl.] <^ Proc. Acad. Xat. 



Sci.Fhila., 1870, p. 73. 



1871. Anox. Hiboux [se montreut trfes communs a Quebec]. <^Xaturaliste Cana- 



dien, iii, 1871, p. 28. 

 1871. AsHBV, R. Snowy Owl in County Mayo. <:^ Zoologist, 2d ser., vi, 1871, p. 2765. 

 1871. Clifton, Lord. Note on the alleged Identity of the American Red Owl [Scops 



asio] with the Mottled Owl [Scops asio]. <^Zoologist, 2d ser., vi, 1871, p. 



2606. 

 Retnms to the charge with a flank movement. 

 1871. CoLLETT, R. On the Asymmetry of the Skull in Strix tengmalmi. <^ P. Z. S., 



xxxvi, 1871, pp. 739-743, woodcc. 

 1871. Hadfield, H. Mottled and Red Owl [Scops asio]. <Zoo?og^t«t, 2dser., vi, 1871, 



pp. 2680, 2681. 

 Flank movement incffectnal ; charge resumed. Editor dismisses both beUigerenta forever. 

 1871. Kessler, G. Die Schnee-Eule [Nyctea nivea] auf Hiddens-Oee erlegt. <^J. 



f.O., xix, 1871, p. 224. 



1871. Verrill, a. E. Occurrence of Kirtland's Owl [Nyctale " albifrons," i. e., N. 



acadica juv.] in Maine. <^Am. Xat., v, 1871, p. 119. 



1872. CoLLETT, R. Om Kraniets Assymetri hoe Nyctala tengmalmi. <^ Vidensk. Selsk. 



Farh. Christ., 1872, pp. 68-73, woodcc. 

 Mainly a translation of his paper in P. Z. S., 1871, p. 739. 

 1872. CouES, E. A New Bird [Glaucidium ferrugineum] to the L'Tnited States. <,Jm. 

 Xat., vi,1872, p. 370. 



1872. Elliot, D. G. On Nyctale kirtlandi. < This, 3d ser., ii, 1672, pp. 48-52. 



Identifies it with N. tengmalmi ; full synonymy and description. But <^. Ridgway, Am. 

 Nat, 1872, pp. 283-285. 



