![f0060-01](https://article-imgs.scribdassets.com/8j19q8zbwgcov8k3/images/fileBQT1X3I2.jpg)
have been out at night at the Swakopmund Salt Works together with Mark Boorman on almost twenty occasions to ring terns between February 2006 and January 2014. During this period, I ringed 326 Common Terns and fitted one of them, an immature bird, with ring 4H39662 on 23 March 2007. This individual was then sighted in the Netherlands at