161 



Motacilla viridis Gm. Dresser, Birds of Europe, III, p. 269; id. 

 Man. Pal. Birds, p. 206. M. ftava horealis Sund. Hartert, Vog. Pal. 

 Fauna, p. 294. 



Breeding Range: N. Scandinavia und Russia. [Also in Siberia, 

 eastward to the Sea of Okhotsk.] Has occurred in England where it 

 is believed to have bred once. (Bull. B. 0. C, XIII, p. 68, etc.). 



In Norway this race is found commonly in the sseter enclosures of con- 

 the southern high fjeld as far south as the Dovre. Northward it breeds j;°j° " 

 commonly in E. Finmark in all grassy spots. In Sweden it does not 

 range further south than lat 63" N. and is plentiful on the Upper 

 Muonio. In Finland it is tolerably common in Uleaborg, and in Russia 

 is found on the Murman coast, the Olonetz Government N. of Lake 

 Onega, and the Archangel Government. It is very numerous near 

 Archangel, and also on the Petschora to about lat. 67° N. , but is 

 absent from the Kanin peninsula, the tundra N. of the Arctic Circle 

 and the islands in the Arctic Ocean. [Eastward its range extends right 

 across Asia.] 



Like that of the other races, well concealed and by no means easy Nest. 

 to find. It is placed on the ground under shelter of a grass tussock or 

 stump. The parent birds ara very wary, and the hen leaves the eggs 

 long before the intruder approaches (S. A. Davies). 



Usually 5 — 6 in number, but Pearson once took a clutch of 7 on Eggs. 

 the Murman coast. They show the same variations as those of the Blue 

 headed form. 



Full sets may be found in Lapland from about June 13 onward. Breeding 

 and newly hatched young on the 26th. 



- Average of 100 eggs (77 by Rey and 23 by the writer), 18.31x13.97 Measure- 

 mm., Max. 21.3x14 and 19.6x15.4 mm., Min. 16.1x12.9 mm. Average 

 weight, 106 mg. (Rey). 



h. Black headed Wagtail, M. flava melanocephala Licht. 



Plate 19, fig. 24—27 (Odessa, 10. V.). 



Eggs: Thienemann, Fortpfl., Tab. XXV, fig. 6, a— b. 



Foreign Name: Greece: Tsina. 



Motacilla melanocephala Licht. Dresser, Birds of Europe, III, p. 273; 

 •id. Man. Pal. Birds, p. 207. M. ftava melanocephala Licht. Hartert, Vog. 

 Pal. Fauna, p. 295. 



11 



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