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INSECTIVOR^. 
Famihj MOTACILLIBM. 
Genus Motacilla. ( Latham.) 
BLACK-HEADED YELLOW 
WAGTAIL. 
Motacilla jiava, (Lin.,) Var. melanocephala. 
Motacilla melanocephala. 
“ Jlava-melanocephala, 
“ viridis, 
Tjudytes melanocephala, 
Bergeronette, or Hochqueue 
a tete Noire, 
Schicarzkopfige gelhe schafstelze. 
Bonaparte; Icon. cl. Faun, Ital. 
pi. 31, fig. 3. 
Degland. Lichtenstein. 
Dubois. 
Schlegel; Bevue. 
Gmelin. Scopoli. Hodgson. 
Meneteies. 
Of the French. 
Of the Germans. 
Specific Characters . — Top of the head and cheeks a deep 
black; beak black; throat Mhite. Length about sis inches. 
This so-called species was described and figured by 
Prince diaries Bonaparte, in the ^‘Fauna Italica,” pi. 
31. Its claims to specific distinction have, however, 
been doubted by Temininck and others. Mr. Tristram 
writes me word that he has seen every gradation of 
