Oystercatcher have bred successfully for the first time with a chick on the main lake
1 Turnstone - main lake
3 Redshank - marsh, scrape
2 Oystercatcher plus chick - main lake. First breeding attempt at WWT London
1 Kestrel - sheltered lagoon
1 Common Tern - feeding on main lake
5 Swallow - reservoir lagoon
40+ Swift - main lake
Reptiles: (15th May survey) 8 Grass Snake (7 juvenile, 1 sub-adult), 106 Slow Worm (including 30 juveniles).
Flowering plants: Cowslip, Cow Parsley, Primrose, Hawthorn, Blackthorn, Marsh Marigold, Lesser Celandine, Bugle, Forget-me-not, Cuckoo-flower, Wood Anemone, Dove's-foot Crane's-bill, Ragged Robin, Dandelion, Daisy, Bluebell, Cut-leaved Crane's-bill, Red Campion, White Campion, Green Alkanet, Common Vetch, Herb Robert, Ox-eye Daisy, Creeping Buttercup, Ramsons, Jack-by-the-hedge, Bird's-foot Trefoil, Yellow Rattle, Herb Bennett.
Butterflies: (19th May survey) Brimstone, Large White, Small White, Orange Tip, Painted Lady, Speckled Wood, Holly Blue, Green Hairstreak.