106 292 



observed on a freshwater-lake near Trondlijem; they had taken 

 possession of an ohl nest of C. cornix, located in the top of a fir-tree. 

 The eggs being taken, another set \Yas deposited in the same nest 

 (recorded by Mr. Lundgren). 



Young in down, (Total length 146 mm, culmen tarsus 25, middle 

 iQQ 33 _]_ 4 mm) are distinguished from those of other species of 

 Lams by a large black spot above the base of the upper mandible, 

 which it touches. This spot, though never absent, varies considerably 

 in size, sometimes extending over the entire feathered portions of 

 the upper mandible. In young almost full-grown it is plainly visible. 

 Plumage of body slightly tinged with yellowish, bill lightish horn- 

 brown, somewhat paler at the tip. There is also a black spot at 

 the base of the lower mandible, on either side. A more detailed 

 description as regards dress would closely resemble that of young 

 in down of L. marinus, fuscus, or argent atus. 



The stomachs of young in down have been found to contain 

 widely different substances. One brood (Folden Fjord July 1st 1871) 

 were all gorged to the mouth with a species of an amphipodous 

 crustacean (Hyale Nilssonii, Rathke); the stomach of another 

 contained insects only (larvae of Noctuce and Tipulidce) ; a third, 

 just hatched, had been fed exclusively on fish. 



At Bindalen, in Nordland, in the month of July 1871, when 

 observing a colony of this species, which had selected a wooded 

 promontory of the mainland for their breeding-haunt, I repeatedly 

 saw the old birds perch in the tops of trees. In rainy weather 

 dense flocks frequent the fields 'of the shore, to feed on Lmnbrici. 

 Larus ar gentatus, Lin. 



Like the foregoing species, resident and abundant up to the 

 Russian frontier, but is less frequently found nesting on the shores 

 of freshwater-lakes. 



The nests are often located so low down among the rocks 

 as to be sprinkled with the driving spray. In some sets, all the 

 eggs are tinged with a peculiar shade of reddish, the spots, too, 

 being lighter than common. The flesh of the young of this and 

 other species of gulls is flaccid, watery, and stinks of fish. They 



