38 REPORT ON THE MIGRATION OF BIRDS. 



Bluethroat, Ruticilla suecica. — At Heligoland, Sept. 9th, E., 

 fine, several; 17th, N.E., wmd, much rain, many. 



Redstart, Ruticilla phaniicurus. — At Heligoland, Aug. 12th 

 and 13th, young birds. Sept. 3rd, 11 a.m., N.W., great many; 

 8th, many ; 9th, great many ; 16th, many, about half old birds ; 

 17th, enormous numbers, same ; 25th and 26th, many. At 

 Longstone l.h., Sept. loth, several on reef. At Fame Inner l.h., 

 Sept. 15th, many " fly-catchers" with Wheatears (see notes, Fly- 

 catcher, M. grisola). At Teesmouth, many amongst the bents 

 which grow upon the Tees breakwater earl}^ in September (not 

 previously noted in this locality). At Flamborough, last week in 

 August, great many. At Spurn, Sept. 3rd, many, left to a bird 

 night of 3rd. At Northrepps, Aug. 30th and 31st, "swarming.'' At 

 Yarmouth, large numbers first week in September. At Ship wash 

 L.V., Aug. 30th, 2 p.m. to 7 p.m., large numbers to W.N.W. The 

 immigration of this species is very interesting from the large and 

 unusual numbers which can be traced along the east coast from 

 the Fame Islands to the Ship wash l.v., off the mouth of the 

 Thames. The}' arrived along the entire length of the coast 

 during the latter part of August and early in September. At the 

 Shipwash l.v., the most southern station, they were going 

 W.N.W. , and at all other stations, after touching land, 

 evidently followed the coast-line to the south. The migration 

 was confined very closely to the coast, the birds going but a short 

 distance inland. In nearly every case they migrated in company 

 with or at at the same time as the Wheatear. 



Stonechat, Saxicola rubicola. — At Heligoland, Aug. 11th, 

 young. Sept. 3rd, 11a.m., great many; 9th, same. Oct. 1st, 

 2nd and 3rd, old birds. 



Whinchat, Saxicola nihetra. — At Heligoland, Aug. 23rd, great 

 many young birds, the first of them ; 24th, also great many. 

 October, first week, old birds. Mouth of Deben river, Suffolk 

 coast, Nov. 1st. 



Wheatear, Saxicola aenanthe. — At Heligoland, July 5th, small 

 flights, young birds; 24tli, same. Sept. 16th, great many, about 

 half old birds. At Fame Inner'L.H., Aug. 10th, several. Sept. 

 15th, forty to fifty. At Teesmouth 5 Buoy l.v., Aug. 30th, 10 a.m., 

 fog, two came on board. Sept. 10th, great many Wheatears from 

 S.E., and "several small birds of a dark green colour" (Red- 

 starts?), some on deck. At Teesmouth, Sept. 10th, an unusually 



