In the case of the Common Whitethroat something like a line of migration is indicated by the dates at which the bird was observed. Thus, arriving on the Devonshire, Sussex, and Kentish shores on April 11, 13, and 14 respectively, it was in Berkshire, at East and West Woodhay, on the 15th and 16th; in Leicestershire on the 18th, at Nottingham on the 21st, at Great Cotes in Lincolnshire on the 22nd, at Hovingham, near York, on the 23rd, and by May 6 was as far north as Falkirk. The wind, in all cases where it was noticed, was blowing from the west or south-west, the temperature gradually rising from 48° to 62°. Of the five-and-twenty observations made upon the Blackcap, the majority relate to its appearance in the second week of April, and it would seem that in the case of this species, the further north we go, the later the date of its arrival. At Torquay it was observed on the 7th, Marlborough on the 10th, East and West Woodhay, Berks, on the 15th, Barnsley on the 16th, Burton on the 23rd, and Melbourne, Derbyshire, on the 27th. No record was furnished of its occurrence either in Scotland or in Ireland, where it is at all times a rare bird. It was last seen at Nottingham on Nov. 4. The Blackcap, however, does not invariably quit this country in autumn; many instances of individuals having been seen here in mid-winter have been reported by competent observers. It has occasionally happened, however, that the Coal Titmouse (_Parus ater_), which is a resident species, has been mistaken for this bird. In the West of England, during the year referred to, the Redstart seems to have made its appearance somewhat earlier than usual, having been noted at Bishop’s Lydeard, near Taunton, on the 3rd of April. On the 6th it was seen at Keswick, in Norfolk, and on the 8th and three following days in four different localities in Yorkshire; the wind S.W., and the temperature about 51°. After the middle of the month this bird became more numerous, and was very generally observed. In Derbyshire, at Melbourne, it was not seen until April 24, where it seems to have arrived with a S.E. wind; and going still further north, we find it in Stirlingshire and Sutherlandshire on the 27th and 28th. In Ireland it is very rare, and no note was forwarded of its occurrence there in 1872.