426 THE BIRDS OF HELIGOLAND 



occurred here once — viz. on the 21st of September 1879. Durmg 

 that year a quite exceptionally strong migration of eastern and 

 south-eastern species took place, the list of our avifauna having 

 been enriched by five new names. During the spring migration : 

 Emheriza ixjrrhuloides, Alauda jyiKpoletta, Falco eleonorce, Sylvia 

 viridana, Emheriza melanocephcda, occurred repeatedly ; Frin- 

 gilla serinus, repeatedly; Himnnto^yus rufipes and Sturnus roseus, 

 repeatedly. During the autumn migration, Sylvia tristis ; Anthus 

 richardi rather frequently. Anthus cervinus, repeatedly ; Embe- 

 riza pusilla, from eight to ten times ; E. aureola ? ; E. rustica, 

 five to six times ; Sylvia superciliosa, repeatedly; regidoules, Larus 

 affinis, and Fringilla hornemanni. The names are arranged in 

 the order of the occurrence of the respective species ; and the same 

 influence which produced this extraordinary number of excep- 

 tionally rare eastern species most probably also afiected the species 

 of Woodpecker at present imder discussion. 



The home of this species extends from central Scandinavia as 

 far as Kamtschatka. 



229. — Green Woodpecker [GKUi\sPEcnT]. 

 PIOUS VIRIDIS, Linn.i 



Piciis viridis. Naumann, v. 270. 



Ch-een Woodpecker. Dresser, v. 77. 



Pic rcrt. Temminck, Manuel, i. 391, iii. 280. 



As has been previously mentioned, I have only observed this 

 Woodpecker once. The bird in question flew from my garden 

 into that of a neighbour, but immediately afterwards was not to 

 bo found, either there or anywhere else ; probably, after a fruitless 

 inspection of the few tree-like shrubs of the island, it had taken 

 its departure again. It was in the beginning of summer ; the bird 

 had its flanks strongly marked with spots arranged in bands or 

 bars, and was therefore probably a somewhat young female. 



This species is distributed over the whole of Europe, but in the 

 north does not advance farther than central Scandinavia. 



Tree Creeper — Certhia. — The genus of these small peculiar birds 

 embraces, according to Secbohm, only three species. They form a 

 very sharply marked-oif division as regards form and structure, but 

 in their mode of life and habits they are closely related to the 

 Woodpeckers, for like these they seek their food by climbing up 



' Oecinus cindia (Liun.). 



