Richardson’s jager. 
355 
it by the Prince of Musignano.* According to this 
account, the L. buffonii has the bill an inch and a 
quarter long from the front ; ours is only an inch : the 
tarsi are described as almost smooth, whereas in ours 
they are particularly rough. The adult, as figured in 
plate 762 of the PL Enl. has the chin, throat, and sides 
of the neck quite white ; but, in our bird, these parts 
are of the same pure and decided tint as that of the 
body, except that the ear feathers, and a few lower 
down the neck, have a slight tinge of ochre. The tarsi 
also, in both the plates cited by the Prince, are coloured 
yellow. These differences, with the more important 
one exhibited in the feet, will not permit us to join 
these birds under one name. Another distinction, 
which must not be overlooked, is in the colour of the 
feet. Edwards expressly says of his c Arctic Bird,’ 
(pi. 149, which much more resembles ours than that 
figured on the plate immediately preceding,) that ‘ the 
legs and toes are all yellow;’ whereas, in our bird, 
these members are of a deep and shining black ; while 
the hinder parts of the tarsi, toes, and connecting mem- 
brane, are particularly rough.” — Sw. 
“ This jager breeds in considerable numbers in the 
barren grounds, at a distance from the coast. It feeds 
on shelly mollusca, which are plentiful in the small 
lakes of the fur countries ; and it harasses the gulls in 
the same way with others of the genus.” — Richardson. 
* “ Lestris buffonii, JBoje. Bill, one inch and a quarter from 
the front, straight, notched ; middle tail feathers, gradually taper- 
ing, narrow for several inches, ending in a point ; tarsus, one 
inch and a half long, almost smooth. — Adult, brown ; neck, and 
beneath, white, the former tinged with yellow. — Young, wholly 
brownish. 
“Arctic bird, Edw. pi. 148; Buff. PL Enl. 762. Lestris 
erepidata, Brehm.” — Bonap. Syn . No. 306. 
