From surveying this week on the Humber - this time on the northern side, near the industrial plants at Saltend. As well as the estuary and its edges, we also monitor key roosting, feeding and resting sites nearby, and the numbers of Lapwings (as well as Golden Plovers, Curlews, Pink-footed Geese, Wigeon and more) are a testament to the massive importance of those ever more precious pockets of undisturbed, open, non-arable land close to the river.