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	394
2	170
3	107
4	280
5	40
6	40
7	9
8	26
9	12
10	25
11	76
12	-
13	51
14	24
15	376
16	164
17	375
18	180
19	89
20	4
21	14
22	45
23	64
24	42
25	55
26	26
27	18
28	9
29	16
30	5
31	6
	2 742

september
1	1
2	66
3	99
4	42
5	-
6	12
7	7
8	14
9	24
10	75
11	49
12	108
13	62
14	33
15	27
16	4
17	9
18	-
19	20
20	-
21	105
22	1
23	80
24	5
25	14
26	-
27	21
28	5
29	13
30	8
-
	904

october
1	13
2	1
3	19
4	-
5	10
6	45
7	2
8	-
9	13
10	17
11	2
12	-
13	4
14	-
15	28
16	3
17	-
18	-
19	-
20	39
21	26
22	2
23	7
24	5
25	7
26	43
27	10
28	-
29	67
30	46
31	18
	427

november
1	10
2	41
3	7
4	12
5	3
6	3
7	-
8	6
9	-
10	-
11	4
12	22
13	-
14	2
15	-
16	22
17	-
18	12
19	-
20	2
21	-
22	-
23	-
24	-
25	-
26	-
27	-
28	-
29	-
30	-
-
	146