REPORT
ON THE
MIGRATION OF BIRDS
IN THE
SPRING AND AUTUMN OF 1884.

BY

Mr. J. A. HARVIE BROWN, Mr. J. CORDEAUX, Mr. R. M. BARRINGTON, Mr. G. A. MORE,
AND
Mr. W. EAGLE CLARKE.

SIXTH REPORT.
(Vol. II., No. 1.)

"A good practical naturalist must be a good observer; and how many qualities are required to make up a good observer! Attention, patience, quickness to seize separate facts, discrimination to keep them unconfused, readiness to combine them, and rapidity and yet slowness of induction; above all, perfect fidelity, which can be seduced neither by the enticements of a favourite theory nor by the temptation to see a little more than actually happens in some passing drama."—Essays, Bishop Wilberforce, Vol. I.

LONDON:
PRINTED BY WEST, NEWMAN & CO., 54, HATTON GARDEN.

1885.

PREFACE.

The following Report contains a summary of investigations of the Committee re-appointed by the British Association for the Advancement of Science, at Montreal, Canada, in 1884, to consist of Professor Newton, Mr. J. A. Harvie Brown, Mr. John Cordeaux, Mr. W. Eagle Clarke, Mr. R. M. Barrington, and Mr. A. G. More, for the purpose of obtaining (with the consent of the Master and Elder Brethren of the Trinity House, the Commissioners of Northern Lights, and the Commissioners of Irish Lights) observations on the Migration of Birds at Lighthouses and Lightships, and of reporting on the same at Aberdeen in 1885. Mr. Cordeaux to be the Secretary.