1 92 1.] the Near East and Tropical East Africa. 665 



Spring passage in the Sudan extends commonly to the 

 middle of April, and birds have been obtained as late as 

 12. V. Spring passage north leaves the Egyptian Delta to 

 the east and passes over the Fayoum and Wadi Natrun. The 

 absence of migratory Yellow Wagtails from the Egyptian 

 Delta in spring is most remarkable. Passage in the Fayoum 

 and Wadi Natrun extends from about 15. iii. to well on into 

 April, being very strong from 18. iii. to 20. iii. 



A few pass north through Palestine from the middle of 

 March to tlie middle of April, and birds have been obtained 

 on spring passage in Sinai from 31. iii. to 30. iv. 



Motacilla f. dombrowskii (Tschusi). 



No autumn record for Palestine, Egypt, or the Sudan, 

 Six obtained in the Sudan from 31. iii. to 17. iv. Not 

 uncommon on spring passage in the Fayoum and in Sinai. 

 Obtained in Palestine on 22. iii. 



No record from Kenya Colony or Uganda. 



Motacilla f. beema Sykes. 



No record for Egypt or the Sudan. A few obtained in 

 Kenya Colony (Nairobi and Kisumu) in early March. 

 Sladen obtained examples in Palestine on spring passage 

 in 1918. 



Motacilla f. thunbergi Billberg. 



No Palestine record — in fact, there is no mass migration 

 of any Yellow Wagtail in Palestine at any season. Scarce 

 on autumn passage in Egypt. No autumn record for the 

 Sudan, though Reichenow (Vog. Afr.) records birds from 

 Khartoum and Senaar without date. A regular winter 

 visitor to northern Somaliland. 



In Kenya Colony they commence to arrive at Nairobi and 

 Naivasha during the last days of September, and are quite 

 common all over the country by the middle of October. 



This race is common on both passages in the Caucasus and 

 southern Russia_, and appears to jump direct in one long- 

 flight from those districts to its winter haunts in the tropics 

 of Africa. 



