160 



UNSCHEDULED BIEDS. 



SUMMARY OF THE RECORDS. 



THE SONG -THRUSH {Turdics musicus) . 



During- the first week of January the autumn westerly and south- 

 westerly movements of this species were renewed, and a good many 

 were recorded on the nights between the 4th and 8th at the light-stations 

 on the Isle of Man and Bardsey Island. A few occurred on the 

 7th/8th at the Kentish Knock Lt.-v., and these also were presumably 

 travelling to the west. 



On the nights of February the 3rd and 7th a few were noticed at 

 Spurn Head Lt. (Yorkshire), but there was no indication of the direction 

 in which they were going. The first return of the winter-emigrants 

 was noticed at St. Catherine's Lt. (Isle of Wight), where moderate 

 numbers appeared, on the nights of the 12th, 13th and l-Ith. No further 

 migration was noted during that month. 



Towards the end of the fir.-<t week in March a movement of very 

 considerable magnitude began on the west coast. Very large numbers 

 were reported from the light-stations on the Isle of Man, the "Welsh 

 Skerries, Bardsey and St. Tudwal's Island otf the Carnarvonshire cuast, 

 likewise on the Pembrokeshire coast every night from the 5th to the 

 8th, while the smaller numbers recorded on the night of the 9th would 

 seem to indicate the cessation of this movement. There was a renewal, 

 however, on the nights of the liJth and 14t]i and again on the 28th and 

 29th, and though the numbers were considerable on the two first-named 

 dates, they were small in comparison with those previously recorded, 

 ■while on the two last-named nights tliey were quite inconsiderable. It 

 eeenis probable that this extensive movement was concerned with birds 

 on passage from Ireland, but there is also a certain amount of evidence 

 which points to the movement being a iioilherly one, more ur less 



