54 REPORT ON THE MIGRATION OF BIRDS. 



less numbers to Nov. 15th ; Redcar, Dec. 3rd, some ; and Spurn, 

 at intervals, a few to end of the year ; the main body came in 

 from Flamborough Head to the coast of Essex, comparatively 

 few north of Flamborough or south of the Thames ; the chief 

 lines of flight S.E. to N.W., E. to W., and S. to N.W. Heligo- 

 land, Oct. 2nd, first flight ; 5th and 6th, numbers ; and on to 

 14th, when thousands crossed ; 15th, none ; 18th, N., great 

 flights ; 19th less ; 20th, great numbers ; 21st, astounding 

 numbers ; less on 22nd and 23rd, and then very great again on 

 24th and 25th ; Nov. 1st, and on 2nd and 3rd, very great 

 migration late in afternoon, and at intervals to 28th. 



C.frugilegus, Rook. — Spring: Newarp l.v., Feb. 10th to 13th 

 and 22nd to 23rd, 7.30 to 9 a.m., great numbers of "black 

 crows" to eastward, and at intervals to April; 23rd, large 

 numbers of both black and grey Crows in same direction ; Larks, 

 Sparrows, and Chaffinches also ; at the same date, Feb. 23rd, 

 large numbers of Crows and Larks passing to the west. Ship- 

 wash l.v., 13th, 8 a.m., flights of thousands to S.E. Leman 

 and Ower l.v., from March 4th and through April, great 

 numbers of Crows to E. from W. Autumn: Oct. 5th to Nov. 

 12th, recorded at nine stations south of Humber, from Spurn to 

 Orfordness ; an almost continuous rush night and day last 

 fortnight in October. Heligoland, Oct. 6th, first; 14th, great 

 numbers ; 15th, some ; 23rd, two monstrous flights in afternoon ; 

 24th and 25th, astounding numbers (see General Eemarks) ; 

 Nov. 3rd, during afternoon. 



C. corax, Raven. — Languard l.h., June 22nd, 6.50 a.m., two. 



Alauda arvensis, Sky Lark. — Spring: At Leman and Ower 

 l.v., March 4th, great many E. to W., also many birds, Chaffinches 

 and others, to April 9th, likewise E. to W. Outer Dowsing l.v., 

 March 7th, Larks and Starlings. In the. autumn Larks are 

 recorded first at the Varne l.v., Sept. 6th ; last at Goodwin l.v., 

 Dec. 23rd, a few about lantern all night ; the migration cover- 

 ing 109 days, and including twenty-four stations between the 

 Farn Islands and HanoisL.H., fourteen of which are light vessels. 

 From Sept. 30th to the middle of Nov. enormous numbers crossed 

 the North Sea either directly from E. to W., a point S. of E. to 

 other N. of W., and from the 15th of Oct. to the end of the 

 month the rush appears to have been nearly continuous night 

 and day ; the great rush from the 20th to the 23rd. At Heligo- 



