8 REPORT ON THE MIGRATION OF BIRDS. 



this will turn out to be the Grey. [Yet Mr Barrington, in June 

 1886, shot a veritable M. Rati in N. Eona ! !] 



August. — One record of Wagtail at Pentland Skerries, after 

 strong N.W. wind on island. 



September. — At Pentland Skerries, a few Pied Wagtails, on 

 five dates between 3d and 22d. The most, six on the 22d ; 

 also one Wagtail at Bell Rock on 2d ; strong S. breeze. 



October. — Pied Wagtails at Pentland Skerries, fresh W., on 5th. 



Anthid^e. — January. — Eock Pipits noted at 1ST. Unst on 29th. 

 No more of this species till Autumn. 



Ma.rch. — At N. Unst on 7th, and again on 21st, " Moss- 

 cheepers," and at Bell Eock, a few on 20th and 23d ; S.E., fresh, 

 and haze. 



April. — A few on 23d at N. Unst ; " three or four remained 

 all the year." 



July. — Three at N. Unst ; S.W., strong breeze. [But are these 

 not resident ?— J. A. H.-B.] 



August. — All returns from Pentland Skerries. N.B. — "Rush" 

 on afternoon of 23d, and again on 23d; light W., breeze, haze, 

 left flying south. 



September. — At K. Unst, numerous on 20th, and flock of five 

 on 1st ; N., fresh, clear. A few at Bell Eock, and an increase 

 observed on loth there; wind S.S.W. and S.W., light. 



October. — On 4th and 5th, a number on Bell Eock; S.W. 

 strong breeze, haze. Eested on rock ; light breeze on 5th. 



MusciCAPiD^E. — August. — At Pentland Skerries, one on 10th 

 on island ; N.W., cloudy. 



September. — At Pentland Skerries, one or more on 5th all 

 day ; fresh N.E. Do., two or three on 29th all day ; fresh 

 E. Do., a few on 30th all day, N.N.E., cloudy. 



October. — At Pentland Skerries, one or two all day on 5th ; 

 strong N.W., cloudy. 



Prom the above it is evident Pentland Skerries is a regular 

 resting place most seasons. No doubt the Pied Flycatcher is 

 intended throughout. 



Hirundinid^. — May. — 13th, at N. Eonaldshay, two, 5 p.m. ; 

 N.N.E., fresh, clear. 11th, at Pentland Skerries, " Arrival of all 

 day;" N.W., clear. 15th, do. do., all day; W.N.W., clear; on 

 lighthouse. 26th, do. do., one, 12.30 p.m.; light N.E. ; flying 

 W. 14tb. at Diuinet, two, 4 p.m. ; light W. breeze, clear. 



