Note 2 — NOTES[H] ON CERTAIN BIRDS FOUND IN NORFOLK.

Browne seems to have had on the whole a fairly correct idea with regard to the migratory movements of the birds on the Norfolk coast where peculiar facilities exist for such observations, but of course he could have formed no notion of the extent to which they prevail, perhaps no species being altogether sedentary. The general line of the autumn migration for those which spend their summer in Northern Europe is south or south-west, returning in the spring by the reverse route; those which visit us in spring from Western Europe, or countries lying still more to the eastward, adopt what is known as the east to west route, and reverse the direction in the autumn; but this latter is as nothing compared with the vast number of immigrants by both routes in the early autumn, at which time, especially, the movements are so exceedingly complex that it would be impossible here to attempt to explain them, and the reader must be referred to Mr. Eagle Clarke's digest of the Reports of the Migration Committee of the British Association ("Report Brit. Ass. for 1876," pp. 451-477).