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Totals Po Toi - Seawatch (Hong Kong) 2023
Species
Feb
Mar
Apr
May
Totals
NE
W
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Garganey
0
13
0
0
13
13
0
13 (
12 Mar
)
4
1
12 Mar
12 Mar
2.
duck sp.
0
0
0
1
1
1
0
1 (
16 May
)
4
1
16 May
16 May
3.
Pacific Swift
0
0
2
4
6
6
0
4 (
20 May
)
13
3
25 Apr
20 May
4.
House Swift
0
0
0
1
1
1
0
1 (
19 May
)
4
1
19 May
19 May
5.
Apus sp.
0
0
0
1
1
1
0
1 (
17 May
)
4
1
17 May
17 May
6.
Oriental Turtle-Dove
0
0
1
0
1
1
0
1 (
25 Apr
)
4
1
25 Apr
25 Apr
7.
Whimbrel
0
0
68
0
68
68
0
24 (
27 Apr
)
17
4
26 Apr
29 Apr
8.
Far Eastern Curlew
0
0
1
0
1
1
0
1 (
27 Apr
)
4
1
27 Apr
27 Apr
9.
Red-necked Phalarope
9
54
928
309
1300
1206
94
427 (
26 Apr
)
61
14
21 Feb
19 May
10.
Marsh Sandpiper
0
0
1
0
1
1
0
1 (
26 Apr
)
4
1
26 Apr
26 Apr
11.
Wood Sandpiper
0
0
3
0
3
3
0
3 (
27 Apr
)
4
1
27 Apr
27 Apr
12.
Turnstone
0
0
1
0
1
1
0
1 (
27 Apr
)
4
1
27 Apr
27 Apr
13.
wader sp.
0
2
75
0
77
77
0
50 (
26 Apr
)
26
6
13 Mar
28 Apr
14.
large wader
0
0
6
0
6
6
0
6 (
28 Apr
)
4
1
28 Apr
28 Apr
15.
Oriental Pratincole
0
2
1
0
3
2
1
1 (
20 Mar
)
13
3
20 Mar
28 Apr
16.
Aleutian Tern
0
0
197
33
230
230
0
82 (
28 Apr
)
30
7
25 Apr
20 May
17.
Bridled Tern
0
0
271
101
372
372
0
111 (
28 Apr
)
39
9
25 Apr
20 May
18.
Little Tern
0
0
1143
42
1185
1185
0
974 (
28 Apr
)
39
9
25 Apr
20 May
19.
Gull-billed Tern
0
0
33
15
48
48
0
14 (
26 Apr
)
35
8
26 Apr
20 May
20.
Caspian Tern
0
4
0
0
4
2
2
2 (
22 Mar
)
9
2
22 Mar
23 Mar
21.
Whiskered Tern
0
0
12
7
19
19
0
6 (
16 May
)
30
7
25 Apr
17 May
22.
tern/marsh tern sp.
0
0
242
207
449
449
0
124 (
28 Apr
)
39
9
25 Apr
20 May
23.
White-winged Black Tern
0
0
64
539
603
603
0
402 (
16 May
)
35
8
26 Apr
20 May
24.
Common Tern
0
1
1242
463
1706
1706
0
534 (
29 Apr
)
48
11
22 Mar
20 May
25.
Black-naped Tern
0
0
63
15
78
78
0
38 (
29 Apr
)
35
8
26 Apr
19 May
26.
Roseate Tern
0
0
1
21
22
22
0
9 (
17 May
)
17
4
29 Apr
20 May
27.
Greater Crested Tern
1
15
147
147
310
310
0
85 (
17 May
)
70
16
21 Feb
20 May
28.
Black-tailed Gull
361
15
0
1
377
192
185
129 (
21 Feb
)
52
12
19 Feb
17 May
29.
Heuglin's Gull
105
231
1
0
337
316
21
113 (
12 Mar
)
52
12
19 Feb
27 Apr
30.
large gull sp.
659
85
0
0
744
598
146
471 (
19 Feb
)
52
12
19 Feb
23 Mar
Species
Feb
Mar
Apr
May
Totals
NE
W
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Slaty-backed Gull
0
0
0
1
1
1
0
1 (
16 May
)
4
1
16 May
16 May
32.
Long-tailed Skua
0
0
7
0
7
7
0
7 (
27 Apr
)
4
1
27 Apr
27 Apr
33.
skua sp.
1
1
8
2
12
12
0
8 (
26 Apr
)
17
4
21 Feb
17 May
34.
Arctic Skua
1
0
28
6
35
35
0
12 (
28 Apr
)
35
8
23 Feb
17 May
35.
Ancient Murrelet
4
4
0
0
8
6
2
3 (
19 Feb
)
22
5
19 Feb
21 Mar
36.
Streaked Shearwater
47
9
1
5
62
61
1
21 (
20 Feb
)
43
10
20 Feb
18 May
37.
Short-tailed Shearwater
0
0
22
82
104
104
0
38 (
16 May
)
35
8
27 Apr
20 May
38.
shearwater sp.
0
0
1
1
2
2
0
1 (
27 Apr
)
9
2
27 Apr
16 May
39.
Bulwer's Petrel
0
0
0
2
2
2
0
1 (
16 May
)
9
2
16 May
17 May
40.
Brown Booby
0
0
2
1
3
3
0
1 (
27 Apr
)
13
3
27 Apr
18 May
41.
Masked Booby
0
0
1
0
1
1
0
1 (
27 Apr
)
4
1
27 Apr
27 Apr
42.
Night Heron
0
0
1
0
1
1
0
1 (
27 Apr
)
4
1
27 Apr
27 Apr
43.
Chinese Egret
0
0
2
0
2
2
0
2 (
26 Apr
)
4
1
26 Apr
26 Apr
44.
Little Egret
0
1
20
10
31
31
0
10 (
18 May
)
26
6
13 Mar
18 May
45.
Egretta sp.
0
0
24
39
63
63
0
17 (
17 May
)
26
6
26 Apr
18 May
46.
Chinese Pond Heron
0
0
7
0
7
7
0
5 (
26 Apr
)
13
3
26 Apr
29 Apr
47.
Eastern Cattle Egret
0
8
60
0
68
68
0
32 (
26 Apr
)
22
5
19 Mar
29 Apr
48.
Great White Egret
0
1
3
0
4
4
0
1 (
21 Mar
)
17
4
21 Mar
28 Apr
49.
Intermediate Egret
0
0
1
0
1
1
0
1 (
26 Apr
)
4
1
26 Apr
26 Apr
50.
Grey Heron
0
1
0
0
1
1
0
1 (
19 Mar
)
4
1
19 Mar
19 Mar
51.
Osprey
0
2
0
0
2
2
0
2 (
21 Mar
)
4
1
21 Mar
21 Mar
52.
Peregrine
1
0
0
0
1
1
0
1 (
22 Feb
)
4
1
22 Feb
22 Feb
53.
Swallow
7
50
62
10
129
129
0
19 (
25 Apr
)
91
21
19 Feb
20 May
54.
Eastern Yellow Wagtail
0
0
14
1
15
15
0
10 (
26 Apr
)
26
6
25 Apr
18 May
55.
Grey Wagtail
0
1
3
0
4
4
0
2 (
29 Apr
)
13
3
13 Mar
29 Apr
56.
White Wagtail
0
1
0
0
1
1
0
1 (
20 Mar
)
4
1
20 Mar
20 Mar
57.
Richard's Pipit
0
0
1
0
1
1
0
1 (
26 Apr
)
4
1
26 Apr
26 Apr
Other species
Species
Feb
Mar
Apr
May
Totals
NE
W
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Indo-Pacific Finless Porpoise
29
3
0
0
32
32
0
18 (
22 Feb
)
17
4
21 Feb
19 Mar
Species
Feb
Mar
Apr
May
Totals
NE
W
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
1225
504
4771
2067
8567
8115
452
100
23
Observation hours
44:05
52:15
42:50
41:35
180:45
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