32 G MR. J. H. GURNEY, JUN., ON GULLS ON THE NORFOLK COAST. 
SCIRPUS SETACEUS, L. 
SCIRPUS PAUCIFLORUS, Lightf. 
Eriophorum augustifolium, Eoth. 
Carex teretiuscula, Good. 
CaREX DIOICA, L. 
Carex echinata, Muit. 
Carex flava, Linn. 
Carex ampullacea, Good. 
And Avithin a mile Mentha arvensis, var. proic.ox, and Spiranthes 
auttimnalis, L., at Bradfield Common, along the same water-course. 
VI. 
ON THE PERIODICAL MOVEMENTS OF 
GULLS {LARID^) ON THE COAST OF NORFOLK. 
By J. H. Gurney, Jun., F.L.S. 
Read ^oth November, 1886. 
The Movements of Gulls in Autumn on the Coast 
OF Norfolk : their constant appearance in small, their 
OCCASIONAL appearance IN LARGE NUMBERS. 
For a long time it has been noticed by people at Cromer, that 
every autumn great numbers of Gulls pass along the shore, flying 
Avest, and many have been the surmises as to the cause of this 
movement, and the destination of the feathered travellers. 
One of the largest flights ever noticed, passed Cromer on 
October 11th, 1884, and some account of it is given in ‘The 
Zoologist’ (1885, p. 174), though I noAV knoAV from subsequent 
observation that the estimate of the number seen Avas over 
the mark. There had been a gale in the night from N.N.W., 
and at 11 a.m. not a Gull Avas to bo seen: they began to 
