204 BRITISH BIRDS. 



Weights of Unblown Eggs. — Mr. N. H. Foster (Irish 

 Naturalist, 1909, p. 216) gives a further instalment, in con- 

 tinuation of his previous papers on this subject, in which the 

 eggs of twenty species are dealt with. 



Wood-Wren at Londonderry. — Mr. D. C. Campbell 

 records in the " Irish Naturalist " (1909, p. 207) that on April 

 17th and 18th last he heard a small Warbler singing, which 

 from his description there can be little doubt was an example 

 of Phylloscopus sibilatrix which has an extremely local distri- 

 bution in Ireland and has not we believe previously been 

 recorded from Londonderry. 



White-throated Sparrow at the Flannan Islands. — A 

 male of the White-throated Sparrow or Bunting (Zonotrichia 

 albicollis), an American species, was shot on May 18th, 1909. on 

 Eilean Mor, Flannan Islands (F. Smalley, Ann. Scot. Nat. Hist., 

 1909, p. 246). This species has occurred previously at 

 Aberdeen, as well as in Holderness, Yorks, and near Brighton, 

 but it is most probable to suppose that all these birds escaped 

 from ships coming from America. 



Ruddy Sheld-Duck at Sule Skerry, Orkney. — An 

 adult female Tadorna casarca was obtained on this remote 

 island on June 18th, 1909, and was forwarded in the flesh to 

 the Royal Scottish Museum. The species had not previously 

 been recorded from any of the northern isles of Scotland 

 (W. E. Clarke, Ann. Scot. Nat. Hist., 1909, p. 247). 



Black-tailed Godwits in Scotland. — An example of 

 Limosa belgica was seen on April 23rd, May 3rd and 21st, 

 June 4th, and August 30th, 1909, in company with Bar-tailed 

 Godwits in Cromarty Firth (Annie C. Jackson, Ann. Scot. 

 Nat. Hist., 1909, p. 247). One was shot at Morton Loch, 

 Tentsmuir, Fife, on August 20th, 1909 (W. Berry, loc. cit.). 

 One frequented the west side of Iona from September 21st 

 to 26th, 1908 {t.c, p. 212). 



Sabine's Gull in Shetland. — Mr. J. S. Tulloch observed 

 a gull at Lerwick on July 25th, 1909, which from his 

 description (distinct black collar, dark grey cap, long forked 

 tail, about the size of a Black-headed Gull) must have been 

 an adult Xema sabinii (Ann. Scot. Nat. Hist., 1909, p. 248). 



