174 scoLOPACiD.^!:. 
The majority of these Dunlins arrive in flocks about April 
and May, when they have assumed their full summer dress 
with black breasts. 
243. Calidris ARENARTA (Linn.). The Sanderling. 
" This bird is abundant during migration near Tangier in 
small flocks along the coast, crossing the Straits during March, 
April, and May ; they are found returning south as late as 
December. I found numbers near Tetuan in February 1848 
at the mouth of the river, where they are known to the Moors 
under the name of Medrouan.^' — Favier. 
On the African side I saw large flights of Sanderliugs early 
in April between Tetuan and Ceuta. On the Spanish side 
they are common from autumn to spring along the sea-shore, 
the latest I noticed being seen during the first week in May. 
This cosmopolitan species is distinguished by the absence of a 
hind toe ; otherwise it may be classed among the Tring<s ; in 
many of its habits it much resembles the Kentish Plover 
(^, cantiana). 
244i. Gallinago gallinula (Linn.). The Jacksnipe. 
Moorish. Saiga (Favier). 
This bird is stated by Favier to be " nearly as common in 
the winter months around Tangier as the common Snipe, 
arriving during November, and departing northwards in 
February." 
On the Spanish side of the Straits the Jacksnipe is gene- 
rally distributed throughout the winter, and is extremely 
numerous about some favourite black muddy spots at Casa 
Vieja, and in the ^'ojos," or land-springs, at the edges of the 
marisma ; but it is by no means so plentiful as the common 
Snipe. Towards the end of February, Jacksnipes assemble 
together very much ; and this gathering of them is a sure 
prelude to the general departure of most of the Snipes for the 
north. The greatest number of the present species that I 
ever saw anywhere was in some of the " ojos " westward of 
Coria del Rio, near Seville ; these circular spots, about ten 
yards in diameter, are very muddy and sparingly covered with 
