438 
roup:n duck. 
ROTCH {I\Iergulus melanoleucuSf Ray.) 
Uria Alle, Temm. Man. d’Orn. 2. p. 928. — Alca Alle, Linn. Syst. l.p. 211. 5. — 
Gmel, Syst. 2. p. 554. — Mergulus melanoleucus rostro acuto brevi. Rail, Syn. p. 
125. A. 5 — WiU. p. 261. t. 59.— Small Black and White Diver, Wiil. (Angl.) 
p. 343. — Edw. t.9\. — Greenland Dove, Albin, 1. t. 85.' — Le petit Guillemot, 
Buff. Ois. 9. p. 354.— Little Auk, Br. Zool. 2. Ko. 233. t. 82 lb. fol. 137. t. 
K. 4. f. 1.— Arct. Zool. 2. t. 429.— Lath. Syn. 5. p. 327. 2.—Ib. Ind. Orn. 2. 
p. 795. 10. — Lewin’s Br. Birds, 6. t. 223. — WaLc. Syn. 1. t. 88. — Pult. Cat. 
Dorset, p. 17. — Uria minor, Briss. 6. p. 73. 2 lb. 8vo. 11. p. 378 Sea 
Turtle, Bewick’s Br. Birds. 
Provincial. — Rochie or Ratcli. 
* The birds of this species that visit Great Britain in the autumnal and 
winter months, most certainly come from the more northern parts of 
Europe, and very few, if any, breed with us, except in the northern 
parts of Scotland. They come from the frozen shores of Greenland 
and Spitzbergen, but remain contented where they can obtain food from 
the hquid element, and consequently few mig-rate so far as the southern 
parts of England. 
Three specimens have come under examination that were taken in 
the south of England in the winter ; one on the 4th of December, in 
the year 1804, another on the 25th of November, 1805, and the third 
on the 17th of January, 1806. These were dissected in order to dis- 
cover the sex, with a view to ascertain if there was any sexual dif- 
ference in the plumage, it having been said that the throat of the male 
was black. The first of these proved to be a male, the description 
of which is as follows : — 
Length eight inches and a half ; upper part of the head black, taking 
in the eyes, which are whitish ; the sides of the head are white, which 
runs backward and forms a narrow band across the nape, sprinkled with 
dusky, but immediately above the eye is a small white spot ; the whole 
under parts white ; the chin and fore-part of the neck speckled dusky ; 
the intermediate part, or throat, pure white ; scapulars with four or 
five white streaks, or marks, disposed in longitudinal lines ; the thighs 
are mixed with a few black feathers ; the upper parts of the plumage 
are of the usual black colour, and the secondary quills tipped with 
white ; legs and feet dusky. 
The Rotch has sometimes been found dead very remote from the 
sea. The Rev. Mr. Dalton, of Copgrove, near Knaresborough, in 
Yorkshire, assures us that both this and the petrel have been found 
near his house. Whether these were driven by storms, or attempted to 
cross the land from one sea to the other, is difficult to determine.* 
ROTHERMUCK. — A name for the Bernacle Goose. 
ROUEN DUCK. — A variety of the common duck, {Anas boschas,) 
