m/fW5 



Report on the Immigrations of Summer Residents in the Spring 

 of 1911 ; also Notes on the Migratory Movements and 

 Records received from Lighthouses and Light-vessels 

 during the Autumn of 1910. By the Committee appointed 

 by the British Ornithologists' Club. (Forming Vol. XXX. 

 Bull. B.O.C.). 19 Maps. Witherby & Co. 6s. net. 



The seventh annual Report by this indefatigable Committee 

 is even more packed with facts than the previous one, and 

 bears evidence that the band of observers who contribute 

 observations grows both in numbers and energy. We are 

 much indebted both to them and to the members of the 

 Committee who have tabulated the records with such care 

 and labour. 



The arrival of the summer residents in the spring of 1911 

 appears to have proceeded on what may be regarded as 

 fairly normal lines, though some imusual observations were 

 made and these may here be briefly referred to, Avith other 

 items of interest culled from the Report. 



With regard to the great immigration of Continental 

 Great Tits [Parus m. major) in the autumn of 1910 (c/. B.B., 

 IV., p. 247, v., p. 200) it is interesting to note that Great 

 Tits were observed at a number of Lights on the east coast 

 during October and November. In the spring of 1911 there 

 was evidently a return migration which was observed in 

 Suffolk on February 26th as well as in March and April, 

 and in Kent in March. One bird obtained from a flock in 

 east Kent on March 10th proved to be of the Continental 

 form. Movements of Goldcrests in the autumn of 1910 

 were very considerable and lasted from the end of August 

 until the middle of November. It is considered probable 

 that at any rate up to the end of September the birds were 

 of the British form, but that after that they Avere mostly 

 Continental. The earliest specimens of Rcgulus r. reguhis 

 came from east Kent on October 14th, Sussex coast on the 

 24th, and the Isle of Wight on the 26th. An identified 

 example is also recorded for south Yorkshire on April 18th. 

 1911. 



A Chiffchaff {Phylloscopus c. collyhita) was seen at the end 

 of February in Staffordshire, and some remained in the Scilly 

 Isles all the winter. It is probable that some remain every 

 winter somewhere in our islands. A Lesser Whitethroat 



