14 REPORT ON THE MIGRATION OF BIRDS. 



at Isle of May, a brood of young " now flying." In Autumn — 

 only record at Pentland Skerries, one seen all day — light S.W. ; 

 " seldom seen here." 



Acrocephalin^e. — Sedge Warbler. — No spring notice. In 

 Autumn — only two in August at Isle of May. Sedge Warbler, 

 one, on 20th — calm, clear ; and on 23d, two — light S.E. wind ; 

 but large numbers (in company with Willow Warbler rush) at 

 Isle of May on 2d September. The Willow Warbler rush came 

 on the 1st, the Sedge Warblers on the 2d ; the former at 2 A.M. 

 of that day — light W., fog; the latter at 11 a.m. of the next 

 day — light W., and clear. 



TROGLODYTiDiE. — Wren. — Nests on Fidra. No spring records. 



In Autumn. — At Dunnet Head two — strong W. breeze — 

 " young birds," on 31st August. And at Inchkeith, Firth of 

 Forth, one caught on lantern, wind light south. [The above 

 are the only records in August, — what connection appears again 

 between N. of Caithness and Firth of Forth ? — J. A. H.-B.] 

 No more movements on record till October. " Great numbers " 

 at Isle of May on 21st and 24th. No other records, except at 

 Pentland Skerries — a single bird on the 28th. Latest record, 

 one bird at N. Unst on 22d November. 



The above notes tend to accentuate, along with many other 

 parallelisms, what we already consider the chief routes across 

 Scotland (see last Eeport, p. 23). 



Motacillid^e. — Wagtails. — In Spring. — Earliest record is on 

 24th March of Wagtails at Isle of May, two seen — light to fresh 

 S.E., and haze. A few scattered records in April, on 13th and 

 19th, at Pentland Skerries. One record at N. Eonaldshay on 6th 

 May, and one on 20th at Pentland Skerries. Nests found on 

 Fidra, loth June. Whereas in 1885 Eeport Wagtails were re- 

 corded in every month except July, this season we find all the 

 following blank of records : — February, March, April, July, 

 November, and December (see Autumn). 



In Autumn. — Eecords bulk largest in September, both in 

 number of records (6) and bulk of numbers (rush of old and 

 young on 3d and again on 15th at Isle of May, and a few from 

 8th to 11th at Pentland Skerries, and a few from 8th to 9th 

 resting all day at N. Unst). Again in October, a few (5) records 

 of smaller numbers, 3d to 24th, at N. Eonaldshay, Pentland 

 Skerries, and Isle of May. 



