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we had especially refrained from g-eneralizing. We are still 

 determined to issue an annual Report for several years, each 

 of which will deal solely with the immigrations for that year, 

 but we do not propose to draw any comparisons or gener- 

 alizations until the work has been continued over a series 

 of years. This point cannot be too much emphasized. 



The reviewer does not believe that the arrival of birds is 

 influenced so much by the weather conditions of the English 

 Channel as by those at the point of departure. With this 

 opinion we entirely agree, but the difficulty is to ascertain 

 from whence the birds started — whether from Africa^ Spain, 

 the Mediterranean, or the opposite coast of France. Had 

 the reviewer carefully read the Introduction he would have 

 found that the weather on hoth sides of the Channel was 

 taken into account. 



The present Report deals solely with the spring immigration 

 of 1906, and is not compared with the work of the former 

 season. 



This year five other species have been added to the list of 

 scheduled birds, viz., the White Wagtail, Pied Flycatcher, 

 and the Common, Arctic *, and Little Terns, making a total 

 of 34 species which have been specially observed. We have 

 in addition received notes about many other species, which 

 have been incorporated at the end of the Report. 



The migration season in 1906 was noticeable for the 

 prolonged period during which many of the species arrived. 

 The earlier part of April showed the arrival in numbers of 

 exceedingly few species, but this condition of aflPairs was 

 altered on the 18th of the month, when an immense immi- 

 gration of birds of all kinds commenced. From that date 

 till the end of the first week of May immigrants were 

 pouring into our islands, but in the case of many species 

 one wave followed anotber so closely that they practically 

 arrived in a continuous stream for a week, ten days, or even 

 longer. All these facts have been brought out in the body 

 of the Report under the different species. 



* So few records of this species were received that in the body of the 

 Report it has been placed among the unscheduled birds. 



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