We went out looking for Swan ring numbers today. There were around eight birds with darvics, all of which we had seen before, but there were also so new birds with BTO metal rings including a bird with a ring prefixed Z. Most birds on this stretch of river bear rings starting W or ZZ if they were ringed locally.
There no ringed or colour-ringed gulls today.
There no ringed or colour-ringed gulls today.