THE BIRDS OF HELIGOLAND 585 



development of a swimming and diving bird. They never go on 

 land, even building their nest on the water in such a manner that 

 the eggs are for the most part half inuncrscd. Europe possesses 

 five species of these remarkable birds, all uf which are also visitors 

 to Heligoland. 



392. — Great Crested Grebe [Grosser Lappentaucher]. 

 PODICEPS CRIST AT US, Lathaui.i 



Heligolandish : Groot Siedn = Great Silky {Orehe). 



Colymbus cristatus. Naumann, ix. 686. 



Great Crested Grebe. Dresser, viii. 629. 



Cfrebe hvpp£ Temniinok, Manuel, ii. 717, iv. 448. 



The breeding zone of this bird having its northern hmit iia the 

 south of Sweden and Finland, and only stragglers being met with 

 in Norway, it need not surprise us that it is also of extremely rare 

 occurrence in the neighbourhood of this island. Now and then at 

 intervals of years, young birds in different stages are occasionally 

 shot during the winter months. In spring, when the crest is but 

 half-developed, it has only been seen here on two occasions. 



The species belongs to the Old World, and breeds from the 

 south of Sweden to Japan, and from the Capo of Good Hope to 

 New Zealand. 



393. — Red-necked Grebe [Eothhals-Lappentaucher]. 



PODICEPS RUBRICOLLIS, Latham.^ 



Heligolandish : Siedn = Silhy (Grebe). 



Colymbus rubricollis. Naumann, ix. 720. 



Red-necked Grebe. Dresser, viii. 639. 



Gi-ebe jou-gris. Temminck, Maiiuel, ii. 720, iv. 448. 



Old birds of this species are seen in spring dress only on rare 

 occasions; it is more than twenty years since the last example 



' Podicipes criatatus (liirm.). - Podicipes grisdgena CBoAA). 



