and it was off looking for Water Voles . I'm afraid that didn't go to plan , as nobody seemed to have told the Water Voles , but we did hear a Willow Warbler in song . As we reached the scrub areas , the first of at least 4 Nightingales were heard , but as so often the way , none were seen , even though we spent 20 minutes searching a patch of scrub , with a bird singing less than 20 feet away . Some consolation was a Cuckoo , that called 3/4 times in the distance , around the river . We decided to get back to the car and head for the sunken marsh , in the hope of finding the Cuckoo , and were escorted off the scrub area by this Grey Heron . The area around the Millstream was showing promise for the migrant species arriving , with plenty of insects about , especially St.Mark's flies , albeit a week early .
Getting away from the noise and smell of the paper works , a loop of the sunken marsh found several singing Cettis Warblers , but no sign of the Cuckoo , and with the river very high , very little else of interest was found until about to enter the tunnel back to the car park , a Reed Warbler was hear near where the Mute Swans are nesting .
The most enjoyable day ended with 10 butterfly species being recorded , but I just wish the Adders had performed better for Ken .
And finally , although I still haven't had a positive 'yes or no' on the mystery butterfly from the Common , I am posting the shot of the faded and tatty specimen that I think , having seen it in the flesh and in flight , is a Large Tortoiseshell , a rare migrant species that was found in the South up until the last war , before becoming extinct . I think the fact that it has lost most of it's hindwings will make ID harder and also the fact that I only managed the side on shot before it departed at speed . So it's back to wait and see .