464 THE ZOOLOGIST. 
These remarks do not apply to migrants among the waders and 
ducks and geese, which, as a rule, closely follow coast lines, and 
which are abundantly represented on the Solway and coasts of 
Cumberland and Lancashire. There is a much used bird route 
along the north coast of the Bristol Channel, and thence from 
the Pembroke coast, across to Wexford, passing the Tuskar Rock, 
the best Irish station. 
The fact of a double migration or passage of birds, identical 
in species, across the North Sea in the spring and autumn both 
towards the E. and §.E. to the W. and N.W., is again very 
clearly shown in the present report. This phenomenon of a 
cross migration to and from the Continent, proceeding at one 
and the same time, is regularly recorded on the whole of the 
east coast of England, but is specially observable at those light- 
vessels which are stationed in the south-east district; at the 
same time, it is invariably persistent and regular year by year. 
The most interesting stations are those on small islands or 
rocks, or light-vessels at a considerable distance from shore, and 
the regular occurrence of so many land birds, apparently of weak 
power of flight, around these lanterns is a matter of surprise to 
those unacquainted with the facts of migration. No clear indica- 
tion of the migration of the Redbreast has yet been shown on the 
Irish coast; the records of its occurrence are few and scattered. 
The Black Redstart was recorded at several stations in the 
southern half of Ireland; specimens were forwarded from Mine 
Head, the Skelligs, and Rockabill. It is apparently a regular 
winter visitant to the Skelligs and Tearaght, generally appearing 
in October and November. ‘The dates so far recorded by the 
Committee of the occurrence of the Black Redstart on the east 
coast of Great Britain, in the autumn, range between October 
23rd and November 38rd. 
Ornithologists ought to feel much indebted to the members of 
this Committee for the great personal trouble and correspondence 
undertaken by them in this attempt to elucidate the interesting 
problems affecting the Migration of Birds, and the Committee, 
we think, should be heartily congratulated on the success which 
has so far attended their efforts. 
