284 



Prof. S. F. Baird on the Distribution and 



America in their northward or north-eastern movement and 

 corresponding return would not come near Iceland at all ; while 

 on the other hand, a migration to the north and north-west 

 from Iceland would necessarily soon strike Greenland at a 

 distance of only a few hundred miles, especially aided by the 

 prevalent aerial currents, of which mention will be made here- 

 after. The following are the only peculiarly North American 

 or Greenland species noted in Mr. Newton's hst : — Falco can- 

 dicans, Gniel., Numenius hudsonicus, Lath., Histrionicus tor- 

 quatus, Bon. 



It is difficult to say whether the Iceland Golden-eye [Clan- 

 gula islandica) is a gift from Iceland to Greenland and North 

 America, or vice versa. While abundant in Iceland, it is by no 

 means rare in North America, being in some years quite com- 

 mon as far south as the St. Croix Kiver. 



The British island of Heligoland in the North Sea, off the 

 coast of Denmark, is of special interest in an ornithological 

 point of view, from its furnishing more species of European 

 birds than any other locality of its extent (400 out of about 

 500 species admitted by Blasius), as well as several Asiatic and 

 North American species not recorded as having occurred else- 

 where in Europe. To the labours of Herr Gatke, a resident of 

 the island, extended over more than twenty years, we are 

 indebted for the curious and remarkable facts referred to (Nau- 

 mannia, 1858, p. 419). The North American birds observed 

 by him are : — 



Antlius ludoviciauus. Nov. G, 1851. 

 Dendrceca virens. Oct. 19, 1858. 

 Harporhynchus rufus. Oct. — ,1857. 

 Claleoscoptes caroliuensis. Oct. 28, 



1840. 

 Charadrius virginiciis. Dec.20,1847. 



Tryngiles riifescens. JMay 9, 1847. 

 Pelionetta perspicillata. Oct. 9, 



1851. 

 Xema sabinii. Oct. 25, 1847. 



Rhodostethia rosea. Feb. 5, 1858. 



The following North American birds are recorded in Prof. 

 Blasius's 'List of the Birds of Europe,' 1862 (edited by 

 Newton), in the British Museum Catalogue of British Birds, 

 and in other authorities, as occurring in Europe : — 



