1 9 1 8. ] Birds of the Isle of May. 265 



when a beautiful male was seen in Holynian's Eoad, 10, 13, 

 & 14 May, 1913, 28 September, 1915, and 11 & 19 May, 

 1917. 



Motacilla flava flava. The Blue-headed Wagtail. The 

 only record for the island is of one seen by us on 13 & 14 

 May, 1913. It came with a large rush of birds and fre- 

 quented a pool on one of the plateaux. 



■^Motacilla flava thiinbergi. The Grey-headed Wagtail. 

 An uncommon visitor to the island. Single birds occurred 

 oil 16 May, 1913, and 20 May, 1914. When on the 

 wing this bird frequently uttered its loud and distinctive 

 note. 



Anthus trivialis trivialis. The Tree-Pipit. A bird of 

 double passage, recorded in spring throagliout May and in 

 autumn in September and the first half of October. 



Anthus pratensis. The Meadow - Pipit. A summer 

 visitor, some pairs breeding on the island ; these appear to 

 arrive in March and to leave again in August and September. 

 Large passage movements also take place ; these continue 

 through April and the first half of May, and occasionally 

 even up to the end of the month. In autumn, passage is in 

 progress in September and October, and there are two records 

 of the species in November. 



Anthus petrosus petrosus. The Rock-Pipit. Resident, a 

 good many breeding on the island, while some stay through- 

 out the winter. Passage in spring and autumn also takes 

 place ; at the former season in May, at the latter during the 

 second half of September and the first week of October. 

 Although we were on the look-out for the Scandinavian 

 form A. p. littoralis among these migrants, we never 

 succeeded in distinguishing it. 



Regulus regulus regulus. The Goldcrest. A bird of 

 double passage, occurring in much larger numbers in 

 autumn than in spring. It has occurred fairly frequently 

 in March, but April is the time of maximum passage, and 



