CHAPTER XXVII. 



THE GREBES THE DIVERS THE GUILLEMOTS THE ROTCHE THE RAZOR- 

 BILL THE GREAT AUK THE PUFFIN THE BIRD ISLAND INCREDIBLE 

 NUMBERS OF SEA-FOWL. 



THE Great Crested Grebe (Hvit-strupig Dopping, or 

 White- throated Dipper, Sw. ; Podiceps cristatus, Lath.). 

 This bird is pretty common during the summer months 

 in the southern and more midland provinces of Sweden, 

 especially in the south ; but its limits to the northward do 

 not appear to be ascertained. It migrates ; arriving in the 

 peninsula in April, and taking its departure in October. It is 

 pretty common in Denmark, where it breeds in many places. 



" Its nest," according to Nilsson, " consists of a floating 

 mass of bull-rushes (Scirpus lacustris, Linn.) and other water 

 plants. It is fastened to the reeds in such manner that it 

 cannot be driven away by the wind. Above, the nest is flat ; 

 and here one finds in July or the beginning of August, four 

 eggs, oblong in form, and of a dirty-white colour. When the 

 bird observes a boat approaching, it covers the eggs with 



