Birds of Heligoland. 13 



140. Saxicola deserti. 



One shot in October 185G, a second in October 1857, a\id 

 a third in June 1880. 



141. Saxicola morio. 



One shot in May 1867, a second in June 188.2. 



142. Saxicola leucura. 



An examxile, supposed to have belonged to this species, was 

 seen in August 1880. 



143. Pratincola rubetka. 

 Common in May and August. 



144. Pratincola rubicola. 



Passes over in small numbers in early spring, and again in 

 autumn. 



145. MOTACILLA ALBA. 



Passes over in some numbers in spring and autumn. 



146. MOTACILLA YARRELLI. 



Passes over from the end of February to the middle of 

 March, but very rarely seen in autumn. 



147. MoTA(;iLLA BOARULA. 



Occasionally met with in the first half of March, but very 

 rare. 



148. MOTACILLA CITREOLA. 



Five examples caught during the last half-century, all 

 immature, in autumn. 



149. MOTACILLA FLAVA. 



Common in spring and autumn. 



-,^„ f MOTACILLA MELANOCEPHALA. 

 loO. < ^^ 



i MOTACILLA VIRIDIS. 



Both species pass over in spring, the former first, but very 

 rare ; the latter passes also in autumn. 



151. MOTACILLA RAYI. 



In small numbers from the third week of April to the 

 middle of May. Has twice bred on Heligoland. 



152. Anthus spinoletta. 



One said to have been caught, and another seen, during the 

 last half-centurv. 



