A Roseate Tern was present at about 7.30 this evening, fishing to the east of the rivermouth. It was easily distuinguished at a distance from the more abundant Common Tern by it’s paler grey colouring and rather fluttery flight between dives.
Black-tailed Skimmers have started to emerge at Castle Water, this young female was one of at least three. Males in the early stages would look the same, gradually changing colour with age, while older females can end up looking like males.
The largest white butterfly in Britain and a strong flyer, many adults seen in Britain have flown from Europe. Not a popular butterfly, because of the damage the larvae can do to brassica crops. Sea-kale is one of the foodplants used, which is abundant on the Beach Reserve.
