17th - Common Tern, Red-crested Pochard (male)

16th - Kingfisher, Willow Warbler, Red-crested Pochard, 4 Sedge Warbler, 2 Little Ringed Plover, 4 Cetti's Warbler, 6 Reed Warbler

14th- 30 Swift, circa 15 Swallow, circa 12 House Martin, 3 Cetti's Warbler, 2 Reed Warbler, 2 Oystercatcher

11th - Oystercatcher, 4 Cetti's Warbler (singing)

8th -  Kingfisher, 4 Cetti's Warbler, 3 Sedge Warbler, 3 Reed Warbler

6th - 4 Cetti's Warbler, 4 Sedge Warbler, 3 Egyptian Goose, 4 Common Tern

5th - 6 Sand Martin, 4 House Martin, 12 Swift, 3 Cetti's Warbler and on Stocker's Farm: Yellow Wagtail

4th - Cuckoo (heard calling along river), 3 Sedge Warbler, 2 Reed Warbler

30th - 3 Common Tern

27th - 5 Chiffchaff, 4 Sedge Warbler, 2 Garden Warbler, 4 Blackcap, Kingfisher; and on Stocker's Farm: Dunlin, Oystercatcher

23rd - 2 Common Tern, 2 Swallow, Sedge Warbler

17th - Kingfisher flying along River Colne and from Stocker's Farm - a cuckoo flying and calling

16th - Sedge Warbler, Blackcap

10th - 4 Cetti's Warbler

2nd - Swallow

30th - 2 Oystercatcher (mating on an island)
22nd - Cetti's Warbler, Goldeneye, 5 Chiffchaff
20th - 8 Little Egret, Siskin
14th - Goldeneye (pair)
13th - Kingfisher, 3 Chiffchaff
12th - 5 Red-crested Pochard (4 male), 5 Goldeneye (2 male)
9th - 4 Little Egret, 7 Goldeneye, Cetti's Warbler, 4 Red-crested Pochard
8th - Great Black-backed Gull, 3 Redpoll
6th - 5 Goldeneye (2 male) and on Stocker's Farm flooded field - circa 20 Wigeon

26th - Red-crested Pochard (male), 2+ Goldeneye, 4+ Redwing

25th - Great Black-backed Gull, 3 Egyptian Goose, 3 Red-crested Pochard (2 male), Oystercatcher, 11 Goldeneye (5 male)

24th - Wood Duck

22nd - Goosander (female), 5 Red-crested Pochard (4 male), Oystercatcher, 9 Goldeneye (3 male)

18th - Oystercatcher, 9 Goldeneye (3 male)

13th - 2 Oystercatcher (on island from Tern hide), 13 Goldeneye (4 male)

11th - 9 Goldeneye (4 male), 8 Egyptian Goose

31st- 15 Goldeneye (5 male) and on Stocker's Farm: 60+ Fieldfare, 30 Siskin

29th - 20+ Wigeon 

28th - Peregrine, 4 Goldeneye, 4 Wigeon

21st - 8 Goldeneye (4 male)

12th and 13th - on adjacent Bury Lake - a male Wood Duck. 

2nd - 16 Goldeneye (6 male)