LARIDA. 643 
THE SANDWICH TERN. 
STERNA CANT{aca, J. F. Gmelin. 
The Sandwich Tern, which derives its name from the place where 
it was first observed in 1784, is a regular visitor to the British 
Islands ; arriving in some localities towards the end of March, 
though on the east coast usually about the middle of April, and 
leaving for the south early in autumn. It not unfrequently changes 
its breeding-grounds when persecuted, and ornithologists who have 
recently explored the Scilly Islands have failed to find it there 
in summer, while particulars respecting Kent, Essex or Suffolk 
might prove prejudicial ; but a large and well-known colony inhabits 
the Farne Islands; and on the west a limited number nest on 
Walney Island off Lancashire, and at Ravenglass in Cumberland. 
Beyond the Solway a few pairs are found on the coast of Kirkcud- 
brightshire, and birds seem to have occurred on Loch Lomond, as 
well as on Tiree; on the east of Scotland there are breeding- 
places up to the mouth of the Findhorn ; and northward a colony 
was discovered in 1893 on North Ronaldshay, Orkneys. In Ireland 
there is a carefully protected site near Ballina, described by Mr. 
R. Warren (Zool. 1877, p. 101), and another may exist. 
This species has visited Norway, but it is seldom found north- 
ward of Denmark and is almost unknown to. the east of Copen- 
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