| Yellow Wagtail |
| This graph shows an
interesting and worrying Spring trend, with a general
decrease in migrant numbers since 1998. With the
exception of 2007, a similar decrease has taken place
since around 2002 and there should be some cause for
concern. 23 moving south on 10th September 2000, still
represents the highest single day count. |
| ... |
| Combined monthly
migration totals per year |
 |
| ... |
| Annual/monthly
migration totals (numerical) |
| ... |
| Year |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Total |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1998 |
|
|
|
41 |
13 |
|
3 |
43 |
32 |
|
|
|
|
132 |
| 1999 |
|
|
|
35 |
9 |
1 |
8 |
59 |
27 |
|
|
|
|
139 |
| 2000 |
|
|
|
33 |
4 |
|
7 |
66 |
71 |
|
|
|
|
181 |
| 2001 |
|
|
|
31 |
23 |
|
|
35 |
38 |
|
|
|
|
127 |
| 2002 |
|
|
|
13 |
9 |
|
7 |
59 |
40 |
|
|
|
|
128 |
| 2003 |
|
|
|
8 |
18 |
|
1 |
36 |
15 |
|
|
|
|
78 |
| 2004 |
|
|
|
13 |
8 |
|
3 |
17 |
2 |
|
|
|
|
44 |
| 2005 |
|
|
|
20 |
16 |
|
6 |
11 |
10 |
|
|
|
|
63 |
| 2006 |
|
|
|
33 |
1 |
|
7 |
43 |
5 |
|
|
|
|
89 |
| 2007 |
|
|
|
18 |
1 |
|
4 |
65 |
45 |
|
|
|
|
133 |
| 2008 |
|
|
|
17 |
6 |
|
12 |
13 |
9 |
|
|
|
|
57 |
| 2009 |
|
|
|
21 |
1 |
|
3 |
5 |
2 |
|
|
|
|
32 |
| 2010 |
|
|
|
17 |
1 |
|
3 |
13 |
15 |
|
|
|
|
49 |
|
