174 THE SCOTTISH NATURALIST 



most interesting being the Dotterel), it is probable that 

 these were our summer birds leaving us. There are also 

 some notes pointing to arrivals of species from overseas. 



September. 



The first week was mainly anticyclonic and the wind 

 variable or easterly, after this cyclonic conditions with strong 

 west and north-west winds prevailed up to the 19th. The 

 20th to 22nd was anticyclonic, with westerly and south- 

 westerly breezes, but a secondary disturbance brought gales 

 from the west and north-west during the next two days, 

 after which the anticyclonic type again became established 

 over these islands and their neighbourhood. The move- 

 ments during September were steady and normal, there was 

 no rush at any time, the departure of summer and the arrival 

 of winter visitors continued, and there was a certain amount 

 of passage migration. Some uncommon visitors are recorded, 

 but not nearly as many as frequently occur at this season. 

 Unusually early records come of the arrival of Jack Snipe. 



October. 



Up to the 1 8th of October the wind was almost entirely 

 from some westerly quarter; from the 19th to the 25th it 

 was persistently east, from 26th to 28th it was more variable, 

 but on the 29th it again returned to the east and remained 

 there till the end of the month. In the first sixteen days 

 of the month a steady arrival of winter visitors is recorded, 

 some passage migration was also noted, and the last of our 

 summer visitors took their departure. On the night of 

 the 16/ 1 7th a rush began which lasted till the 24th. This 

 comprised enormous numbers of Turdinae and other winter 

 visitors, a good many passage migrants, and some uncommon 

 visitors. This rush, which takes place to some extent at 

 any rate, each autumn, was this year compressed by the 

 weather conditions into such a short time that the numbers 

 recorded during this period are unusually large. Up to the 



