Carlton Marshes evening trip

On Saturday 8th April, in the evening I briefly spotted a summer plumaged Black- tailed Godwit on the public scrape at Carlton marshes but dog walkers (with their dog on a lead) may have caused it to walk behind a island from where I was viewing and it disappeared! walking up the western end of the scape, we met gavin D and he pointed out a fine female Yellow Wagtail feeding on the astern end of the scrape. I spotted what i thought was a White Wagtail in flight and this was confirmed when Andrew said he had a White Wagtail on a western part of the scrape on a grassy island.