74 Mr. Hugh Whistler on the 



the numbers which frequented the grass-lands along the 

 river-banks. They started to appear about March, and 

 reached their full numbers about the beginning of May, 

 leaving by the end of that month. The autumn migration 

 started in August and reached its full height in September, 

 comparatively few birds staying into October. The total 

 number of birds passing through in autumn would appear 

 to be much less than in spring. 



[718 is a typical male; 752 and 716 have dark slate- 

 coloured heads and ear-coverts, the latter with an indication 

 of an eye-streak; 729, 717, and 866 have rather browner 

 heads and ear-coverts and a distinct eye-streak ; all are more 

 or less spotted or washed with olive on the lower throat, and 

 have the underparts yellow. 679 has also a dark slate head 

 and ear-coverts, with a well-marked superciliary streak and 

 throat-mottling, but with much less yellow on the under- 

 parts. Whether this variation in females is a question of 

 age, or whether there is another race represented amongst 

 these, I cannot say, but 866 I regard as an adult autumn 

 female. All spring birds are in rather worn plumage. — 

 C. B. T.] 



A common spring and autumn passage-migrant, occurring 

 in flocks in company with other Wagtails from March until 

 May and from August until October. 



[1344 has the central tail-feathers and tertials in quill, 

 while moult of the greater and median coverts has com- 

 menced, as well as of the body-feathers ; the old feathers 

 of the head are brown. 678 is in full fresh plumage, and 

 appears to have moulted in the same manner, all the coverts 

 being fresh except the primary and outer greater coverts. 

 707 is similar, only a shade darker on the ear-coverts. 

 895 is probably an adult male in winter plumage, and 



