Migration monitoring

1

Species by year

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Black-headed Gull

Below are all months shown when black-headed gull migrated this year.

august
1	341
2	44
3	60
4	61
5	40
6	96
7	88
8	53
9	97
10	82
11	161
12	4
13	12
14	99
15	1
16	3
17	1
18	28
19	17
20	9
21	6
22	7
23	44
24	85
25	16
26	5
27	9
28	2
29	179
30	59
31	30
	1 739

september
1	2
2	63
3	309
4	354
5	447
6	104
7	48
8	44
9	38
10	2
11	20
12	18
13	2
14	8
15	13
16	19
17	116
18	78
19	90
20	48
21	30
22	-
23	7
24	39
25	52
26	6
27	13
28	29
29	32
30	401
-
	2 432

october
1	76
2	53
3	23
4	51
5	35
6	6
7	2
8	18
9	7
10	32
11	14
12	8
13	6
14	2
15	-
16	46
17	-
18	7
19	14
20	56
21	68
22	25
23	7
24	18
25	36
26	20
27	34
28	7
29	16
30	14
31	18
	719

november
1	9
2	22
3	2
4	6
5	20
6	4
7	7
8	18
9	3
10	42
11	3
12	16
13	2
14	8
15	12
16	23
17	1
18	-
19	13
20	18
21	-
22	-
23	-
24	-
25	-
26	-
27	-
28	-
29	-
30	-
-
	229