We also managed to ring a few broods of Cormorants in passing. I don't ring many Cormorants as the colonies here are on vertical cliffs and great care needs to be taken that larger young don't scramble out of the nest with an associated risk of falling. When I first came to Aberystwyth in 1982 the Cormorant colony at Penderi, south of Aberystwyth, was something in the order of 250 pairs, today a count of 50 pairs would be good. A similar rate of decline has been seen at Bird Rock near Tywyn down from ca. 150 pairs to about 40. These declines are probably related to declining fish stocks but previous ringing recoveries have shown that some young birds travel down to South-East England and France during their first winter where they (frequently?) get shot!
PC Richardson cuffing a Cormorant