At least 35 Yellow-legged Gulls on the mud flats on the east side of Pagham Harbour (Whites creek) this morning; all were adults except 1 Juv/1st winter, (though several other pale-headed immatures sat on the mud were distinct possibles but beyond positive ID). Also 8 Black-tailed Godwits on the Breech pool and 50 Sand Martins over. The Ferry pool held 1 Common Sandpiper, 18 Black-tailed Godwits and the moulting Ruff.