BLUE-THROATED WARBLER. 97 



the extent and vividness of the blue, and the purity 

 of the red spot, the same parts in the Yarmouth 

 bird being less clearly defined. How far the white or red 

 spots may be considered as characteristics of two distinct 

 species it is difficult to say ; it will suffice, however, 

 for my present purpose, to have shown that the only two 

 examples met with on our eastern coast are Hke the 

 dippers before alluded to, identical with Lapland speci- 

 mens, presented to the Norwich museum by the late 

 Mr. WoUey, and are represented by the two figures in 

 Dr. Bree's "Birds of Europe" (vol. ii., p. 11). Having 

 adopted the nomenclature of Tarrell in this work, I 

 have retained his scientific designation of Phcenicura 

 suecica, the specific term suecica being perfectly appli- 

 cable in the present instance, although not correctly so to 

 the white spotted form, figured by that author in his 

 ^^ British Birds." There is no doubt that the red 

 spotted form is the true Motacilla suecica of Linnseus,^ 

 subsequently described by Pallas, as M. coerulecula; 

 and by Schlegel, as Lusciola cyanecula orientalis ; whilst 

 the white spotted form which does not seem to extend 

 its range so far northward, is the S. cyanecula of l^eyer, 

 and Schinz, improperly called Cyanecula suecica by 

 Brehm and others. Another, and apparently less com- 

 mon form of blue-throated warbler, having the entire 

 throat blue, without either a red or a white spot, has 

 received the name of Sylvia wolfii. Mr. Newcome's 

 collection, at Feltwell, contains an example of this form, 

 which was killed in Holland, and it is by no means 

 improbable that it may some day be recognised in 

 Norfolk. 



SeeLinn^us' diagnosis ' Syst. Nat.' 1766, i., p. 336, " M [otacilla] 

 pectore ferrugineo fascia coerulia," 8fc. 



