| Whitethroat |
| Common migrant with
return migration peaking in August, though migrants are
found from mid-July. There is just one October record,
from 1999. |
| ... |
| 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 |
|
|
|
10 |
16 |
|
23 |
53 |
11 |
|
|
|
|
113 |
| 1999 |
|
|
|
19 |
19 |
|
|
57 |
15 |
1 |
|
|
|
111 |
| 2000 |
|
|
|
35 |
3 |
|
5 |
64 |
13 |
|
|
|
|
120 |
| 2001 |
|
|
|
25 |
24 |
|
|
28 |
35 |
|
|
|
|
112 |
| 2002 |
|
|
|
31 |
27 |
|
35 |
89 |
47 |
|
|
|
|
228 |
| 2003 |
|
|
|
32 |
18 |
|
28 |
76 |
10 |
|
|
|
|
164 |
| 2004 |
|
|
|
29 |
25 |
|
3 |
26 |
7 |
|
|
|
|
90 |
| 2005 |
|
|
|
13 |
27 |
|
12 |
25 |
10 |
|
|
|
|
87 |
| 2006 |
|
|
|
41 |
3 |
|
28 |
70 |
15 |
|
|
|
|
157 |
| 2007 |
|
|
|
15 |
15 |
|
17 |
31 |
22 |
|
|
|
|
100 |
| 2008 |
|
|
|
35 |
15 |
|
22 |
38 |
12 |
|
|
|
|
122 |
| 2009 |
|
|
|
30 |
1 |
|
19 |
34 |
10 |
|
|
|
|
94 |
| 2010 |
|
|
|
34 |
6 |
|
16 |
38 |
9 |
|
|
|
|
103 |
|
