Swallow |
Best Autumn passage has
been missed in recent years through work commitments,
with peak numbers usually occurring in the second half of
August, although return migrants can be seen from early
July. Largest single movements was of 1 167 south on 24th
September 2002. |
... |
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 |
|
|
1 |
67 |
154 |
|
51 |
379 |
1 093 |
82 |
|
|
|
1 827 |
1999 |
|
|
|
118 |
124 |
|
27 |
316 |
2 354 |
70 |
|
|
|
3 009 |
2000 |
|
|
|
153 |
183 |
|
31 |
140 |
2 461 |
167 |
|
|
|
3 135 |
2001 |
|
|
|
116 |
81 |
|
5 |
76 |
641 |
125 |
|
|
|
1 044 |
2002 |
|
|
|
41 |
80 |
|
67 |
108 |
1 483 |
37 |
|
|
|
1 826 |
2003 |
|
|
|
26 |
197 |
|
15 |
188 |
585 |
4 |
|
|
|
1 015 |
2004 |
|
|
3 |
110 |
106 |
2 |
8 |
14 |
91 |
2 |
|
|
|
336 |
2005 |
|
|
1 |
123 |
151 |
|
112 |
69 |
201 |
|
|
|
|
657 |
2006 |
|
|
|
88 |
32 |
2 |
89 |
252 |
102 |
3 |
|
|
|
568 |
2007 |
|
|
|
77 |
74 |
|
5 |
69 |
461 |
52 |
|
|
|
738 |
2008 |
|
|
|
128 |
37 |
|
53 |
126 |
1 016 |
2 |
|
|
|
1 362 |
2009 |
|
|
|
148 |
67 |
|
21 |
190 |
305 |
5 |
|
|
|
736 |
2010 |
|
|
1 |
234 |
60 |
|
47 |
98 |
793 |
315 |
|
|
|
1 548 |
|