Birds in Mr. Gdtke's Collection. 181 



MOTACILLA CITREOLA, PallaS. 



Four occurrences; recent ones are : — Nov. 15th^ 1861, and 

 Sept. 25th, 1870, both immature. 



MOTACILLA MELANOCEPHALA, Savi. 



Occasionally. One was given me, purchased from the 

 bird-stuffer at Heligoland. 



Anthus cervinus, Pallas. 



Two examples in the collection, both old birds, in beautiful 

 plumage, obtained Oct. 1st, 1869. The wind easterly. 



Anthus rupestris, Nilsson. 



A E-ock-Pipit, shot on the island during my visit, which I 

 examined, was the Scandinavian bird. 



Anthus spipoletta (Linnseus). 



Has occurred on Heligoland ; there is, however, no example 

 in the collection. 



Anthus ludovicianus (Gm.). 

 Two examples in the collection. 



Anthus campestris, Bechstein. 

 In the collection. 



Anthus richardi, Vieillot. 



Was formerly of rare occurrence ; it now turns up every 

 year in some numbers ; old birds in the spring, in May ; old 

 and young in the autumn, in September and October; some- 

 times in small flocks of ten, twenty, or thirty a day. In this 

 latter season they invariably arrive under the same circum- 

 stances as PhyUoscopus superciliosus, with a north-east wind. 

 Mr. Gatke said that now probably something like five hundred 

 were seen each year. An example in his collection measures 

 8^ inches in length. 



Alauda tatarica, Pallas. 



April 27th, 1874, a female, and the first example seen. 



Alauda calandra, Linnaeus. 

 In the collection. 



SER. in. VOL. V. o 



