596 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [FoJ.T. 



1851. Strangewayes, E. The Red-backed Shrike, (Lcinius Collurio). <^ Zoologist, 



ix, 1851, p. 3207. 



1852. Buxton, T. F., Jr. Occurrence of the Great Ash-coloured Shrike [Lanius excu- 



hitor] in Norfolk. <^ Zoologist, x, 1852, p. 3475. 

 1852. Ellman, J. B. Occurrence of the Great Gray Shrike [Lauiiis excubitor] at 

 Hailsham. < Zoologist, x, 1852, p. 3388. 



1852. ViERTHALER, R. [Lanius kiek.] <^Naumannia, Bd, ii, Heft ii, 1852, p. 57. 



1853. Bonaparte, C. L. Monographie des Laniens. <^Bev. et Mag. de Zool., v, 1853, 



pp. 292-295, 432-441. 



La synonymie, la patrie et les caracteres de 42 especes des Laniens, trait6e8 d'apres la ma- 

 niere de son Conspectus. Lanius cephalomelus, p. 436 ; i. schwaneri, p. 437 ; Enneoctonu^ nUo- 

 twus, p. 439; Sigtnodus ruflventris, p. 441. 



1853. GURNEY, J. H. Note on the Red-backed Shrike [Lanius rufus] destroying Small 

 Birds. < Zoologist, xi, 1853, pp. 3981, 3982. 



1853. Tobias, R. [Ueber Nester und Eier von Lanius rufus.] <^Naumanma, iii, 



1853, pp. 335, 336. 



1854. Brehm, C. L. Der grosse Wiirger (Lanius excubitor Lin. ) und eiuige seiner Ver- 



wandten. <^./. 0., ii, 1854, pp. 14.3-148. 



Characters of i. rapaa; Brhni, L. excubitor, L. ludovidanus, L. nfiexicanus'&vhva.., n. sp., p. 

 145 ; L. assimilis A. & E. Brhni., L. leuconotus A. & E. Brhm. 



1854. Partridge, H. T. Carnivorous Propensity of the Great Gray Shrike [Lanius 

 excubitor]. <^ Zoologist, xii, 1854, p. 4251. 



1856. Diezel, C. E. Kampf eines Dorndrehers [Lanius spinitorquus] mit einer Ei- 



dechse. < J. f. 0., iv, 1856, pp. 84, 85. 

 2^ achschrift von Dr. Gloger. 



1857. Cassin, J. Notes on the North American species of Archibuteo and Lanius, and 



description of a new species of Toucan, of the genus Selenidera, Gould. <^ Proc. 

 Acad. Nat. Sci., Phila., ix, 1857, pp. 211-214. 



In so far as Lanius is concerned, this paper gives a monographic sketch of the (too many) 

 species recognized as INorth American by the author, these being no fewer than seven in 

 niimber. Later authors have not succeeded in establishing more than two of these as valid. 



1857. Crisp, E. [On a nest found in Suffolk, sup^josed to be that of Lanius excubitor. ] 



<P. Z. S., XXV, 1857, pp. 219,220. 

 1857. Hadfield, H. W. Note on the Woodchat Shrike (Lanius rufus). <^Zoologist, 



XV, 1857, p. 5685. 

 1857. [Whately, R.] The Song of the Butcher-bird [Lanius collurio]. <^ Nat. Hist. 



Rev., iv, 1857, pp. 57,58. 



1857. Wilson, J. J. Occurrence of the Great Gray Shrike [Lanius excubitor] near 



Leeds. < Zoologist, xv, 1857, pp. 5362, 5363. 



1858. Farren, W., Jr. The Great Gray Shrike (Lanius excubitor) in Cambridgeshire. 



< Zoologist, xvi, 1858, p. 5958. 



1858. Homeyer, a. v. Ueber die verschiedene Farbung der Eier des Lanius coUuiio. 

 Lin. < J. f. 0., vi, 1858, pp. 323, 324. 



1858. Passler, W. Ueber die verschiedene Fiirbung der Eier des Lanius collurio. 



< J./. 0., vi, 1858, pp. 43-46. 



1859. Edward, T. Occurrence of the Great Ash-coloured Shrike (Lanius excubitor) in 



Banlfshire. <^ Zoologist, xvii, 1859, pp. 6491, 6492. 



1859. Hawker, W. H. [Letter on supposed nest and eggs of Lanius excubitor.] 



<_Ihis, i, 1859, pp. 330,331. 



1860. Edward, T. Occurrence of the Great Ashcoloured Shrike (Lanius excubitor) in 



Aberdeenshire. < Zoologist, xviii, 1860, pp. 6807, 6808. 

 1860. Edward, T. Capture of an Ashcoloured Shrike (Lanius Excubitor) at Sea. 



< Zoologist, xviii, 1860, p. 7235. 



