171 

 THE ROOK (Corvusfriujilegus). 



As Iglitkouse-keepers often do not distinguish between Rooks and 

 Crows they are here treated under one heading ; probably the majority 

 of the records belong to the Rook. 



On the 13th of January a large flock of Rooks arrived on the S.E. 

 coast of Suffolk. The only records received during February were of a 

 few " Crows" flying N.W. past the Kentish Knock Light-vessel (Essex) 

 on the 13th, and of a large flock of the same birds making for the N. 

 past Cromer (Norfolk) on the 22nd. On the 11th of March migration 

 began in earnest, and lasted till the end of the month. If we except the 

 Caskets Light (Channel Islands), where a few " Crows" were seen at 

 the end of April and the bf ginning of May, the movement was confined 

 to the east coast, and no migration was reported from any station north of 

 Spurn Head Light (Yorkshire) or south of the Longsand Light-vessel 

 (Essex). The^ largest numbers were seen at Spurn Head (11th, 12th, 

 16th, 19th, 21st, 22nd and 31st), at Cromer (17th and 30th), and at 

 Lowestoft (1 2th, 15th, 20th, 23rd and 30th). In most cases the direction 

 of flight was towards the N.N.E., E., or S.E., but some birds seen at 

 Spurn Head on the 16th and 22nd and at the Newarp Light-vessel on tLe 

 12th, were making for the S.W. On more than one occasion migration 

 was stopped by fog or haze. At the beginning of April the height of the 

 migration was over, but a few stragglers were reported from several 

 parts of the Norfolk and Suffolk coasts at the beginning and in the 

 middle of the month, while on the 17th, 20th and 22nd flocks were 

 noticed at Lowestoft, flying to the east or north. 



THE SKY-LARK (Alauda arvensis). 



Almost all the records came from the light-stations, and, when the 

 moon was full, few, if any, were received. 



Large flocks of Sky-Larks were seen at Dungeness (Kent) on the 18th 

 of January, and on the 25th a few were noted at Cromer (Norfolk) 

 making for the north. 



From the lst/2nd to 14th/15th of February, and again at quite the end 

 of the month, migratory movements of no great size were reported from 

 several stations on the east coast between Whitby Light (Yorkshire) and 

 the Kentish Knock Light-vessel (Essex), while from the 11 th to the 14th at 

 Carlisle many birds of this species were heard paesing at night, and on the 

 12th at the Kentish Knock light-vessel a few birds were seen flying N.W. 

 During the first half of March migration was active along the same 

 extent of coast, the largest numbers being noticed at the Kentish Knock 

 Light-vessel on the 3rd/4th and at Spurn Head Light (Yorkshire) 

 on the 3rd/4th and 9th/10th. After the 15th no records were received 

 till quite the end of the month, when large numbers were reported, more 



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