92 BRITISH BIRDS. 



Puffin. — Expanse of wing varying from 21;^ inches to 

 21| inches ; wing from 6^ inches to 6J inches ; total length 

 from 11| inches to 12^ inches ; weight from 11 J ozs. to 

 14J ozs. 



The Common Tern has an expanse of wing of 31 inches, 

 and weighs 4 ozs. Yet with this comparatively great extent 

 of wing its flight is much less rapid in a direct line than that 

 of the species mentioned above. F. W. Feohawk. 



Late Fieldfare in Kent. — ^Mr. Collingwood Ingram saw 

 a single Turdus pilaris flying over Thanet on May 17th, 1910 

 {ZooL, 1910, p. 227). 



Nesting-Habits of the Wren. — Captain R. B. Campbell 

 writes to the {Field, June 25tli, 1910, p. 1112) giving details of a 

 case in which a " cock's nest " of a Wren {Troglodytes parvulus) 

 built while incubation was proceeding, was left unlined for 

 quite six weeks and then lined and eggs deposited in it. In 

 the issue for July 2nd (p. 52) Mr. H. S. Davenport remarks 

 that he has always found that some " cock's nests " are 

 lined and used for breeding purposes after a period of a 

 month or six weeks, while others are merely used for roosting 

 purposes and remain unlined. The object of the well-kno\^'n 

 " cock's nests " has always been a debateable point 

 but there is no doubt that they are frequently occupied for 

 roosting purposes in autumn and winter. Mr. J. Wliitaker 

 {Notes on the Birds of Notts, p. 55) mentions a case where a 

 nest was left untouched for seven weeks after completion 

 before eggs were laid, and that this nest was used again in the 

 follomng season ! 



Blije-headed Wagtail Breeding in Wiltshire. — In 

 Vol. I., p. 89, we published an interesting observation by 

 Mr. G. Dent on Motacilla flava flava breeding near Marlborough 

 in 1907. It is satisfactory to learn from the Report of the 

 Marlborough College Natural History Society for 1909 that a 

 pair of these birds was again discovered in 1909 in the same 

 meadows by Mr. Dent, and that although he failed to locate 

 the nest, he subsequently saw the young after they were 

 fledged. 



Probable Black-headed Wagtail in Norfolk. — Mr. J. 

 Rudge Harding has sent us an account (which he has already 

 communicated to the Field, 2, vii., 1910, p. 52) of a Yellow 

 Wagtail which he saw on June 17th, 1910, and again on 

 June 19th in north Norfolk. Mr. Harding describes the 

 bird as apparently like the YeUow Wagtail {M. raii), 



