arunwild

A large number of Mediterranean Gulls were present at the gull roost on the eastern bank of the River Arun just south of Arundel for much of July 2018. More than 20 had colour rings on their legs, giving an insight into their origins and movements. This analysis was written on 16 August and updated on 19 September to reflect the receipt of additional data. Numbers rose from between one and five birds at the start of July to 42 on 11 July, rising the next day to 97 before falling back. Numbers jumped again a week later, with at least 84 birds by the river or foraging in the adjacent water meadows on 18 July at high tide, when it appears that birds otherwise spread out along the lower reaches of the river became concentrated at the site. Gulls at the Arun roost in July 2018 Species/Date 9 11 12 13 14 16 17 18 21 23 26 27 30 31 2/8 Med. Gull 1 42 97 42 16 4 72 84 72 132 28 10 3 2 0 Common Gull 3 9 9 20 13...