When Bill Oddie first went to East Anglia in the 1950s he searched high and low to see marsh harriers. Back then, there were only two pairs in this part of the country. The reason they have done so well in recent years is undoubtedly the work of conservationists creating new habitats for them and protecting them from persecution and poisoning. This mature female, with large patches of white on her, is collecting nest material. A camera set up by the Hawk and Owl trust looks at her nest and the chicks can be clearly seen with one that’s much smaller than the others. It's great to see these birds doing so well when they were so rare just 50 years ago.