3^4 ALLEN'S NATURALIST'S LIBRARY. 



close among the stones, and are then practically invisible. A 

 reference to this has been given by Air. Trevor-Battye in his 

 ornithological appendix to " Ice-bound on Kolguev," where he 

 gives a careful description of the same tactics as pursued by 

 the Red-necked Phalarope {Phalaropus hypoboreus). 



ADDENDA TO VOL. 111. 



Page 63 :— 



THE AMERICAN LAUGHING GULL. LARUS ATRICILLA. 



Larus atricilla^ Linn. Syst. Nat. i. p. 225 (1766); Saunders, 

 Man. Brit. B. p. 646, note (1889); id. Cat. B. Brit. Mus. 

 XXV. p. 194 (1896). 



{Plate CXXIV.) 

 Adult. — Similar to Z. ridibundus, but distinguished by its 

 black head, dark slate-grey mantle, and its black outer 

 primaries. Total length, 16*5 inches; wing, 13-0. 



Range. — North America, migrating south to Guiana, Brazil, 

 and Northern Peru. 



This species was figured in Jardine's ^' Naturalist's Library," 

 and I have thought it advisable to republish the figure. One 

 specimen is said to have been procured at Winchilsea, but this is 

 disallowed by Mr. Saunders, who says that there is no authentic 

 record for the species in England or any part of Europe. 



Page 182. 



^ COLYMBUS ADAMSI. 



During a recent visit to Manchester, I found a young bird of 

 this species in the very interesting collection of Mr. Bulkeley 

 Allen at Altrincham. The specimen was shot at Achaglachgach, 

 Loch Fyne, by a keeper named Ebenezer Burgess, late in the 

 autumn of 1893. 



ADDENDUM TO PRESENT VOLUME. 



Page 255, line 8 from bottom. Read : — ^^ Turtur arenicola." 



