570 Mr. 8. A. Buturlin on the Breeding-habits of the 
birds bear out this statement in even a more pronounced 
manner than Mr. Clark’s, and are as follows :— 
Exposed 
Wing. Tail, culmen. Tarsus. 
mm. mm. mm. mm. 
on A Sedo 103 104 22 24 
Git istia 105 92 23 25 
Shenae 105 93 22 26 
adios 100 92 22 24 
canoe 97 87 23 25 
eee 97 87 22 25 
Oh ae eensre 95 &2 23 24 
Juv 88 76 24 24°5 
Some of the tails of my examples were very worn. 
QuUISCALUS INSULARIS. 
Quiscalus insularis Richmond, Proc. U.S. Nat. Mus. xviil. 
p. 675 (1895) ; Clark, Auk, xix. p. 265 (1902). 
a-d. set 9. Jan. 6, 1904. [R. B. S.] 
e. Gad. March 21, 1906. [P. R. L.] 
This is a larger bird than Q. lugubris. 
XXXI.—On the Breeding-habits of the Rosy Gull and the 
Pectoral Sandpiper. By S. A. Bururirn, F.M.B.O.U. 
(Communicated by H. E. Dresser.) 
(Plate XII.) 
[Mr. S. A. Buturtr has recently sent me specimens of 
the young in down of the Pectoral Sandpiper and the Rosy 
or Cuneate-tailed Gull in order that I might exhibit them, 
and, if possible, have them figured; they are, I believe, the 
first examples of these birds ever obtained in that stage of 
plumage. J therefore exhibited them on his behalf at the 
meeting of the British Ornithologists’ Club on the 19th of 
June last (see Bull. B. O. C. xix. p. 109), and, owing to the 
courtesy of the Editors of ‘ The Ibis,’ I am now able to give 
figures of both. 
Mr. Buturlin, in his article on the “ Breeding-grounds of 
the Rosy Gull” (¢ Ibis,’ 1906, pp. 334-336), has given very 
