Early afternoon at Fremington Pill – one buzzard, 2 green shank, 1 little egret, 2 glossy ibis, 6 oystercatchers, lots of redshank, teal and 50+ black-tailed godwit – one had 3 white rings on the left leg and white, blue and yellow rings on the left leg – it was too far away to see if there was any writing on the rings. What is the best place to find information on the various bird rings?