It is interesting to look at the ratio of adult to juvenile birds captured during the four month period in three of the species mentioned. This gives some indication of how successful the breeding season was for those species.
                                              Adult       Juvenile

Chiffchaff                                       9           52
Whitethroat                                     18           46
Blackcap                                         68           81

From these figures it would appear that Chiffchaffs were very successful and that Blackcaps had a very poor year.

The following species were ringed in the garden, classified as dry scrub when previously operated as a Constant Effort Site, since April.
  1 Tree Pipit, 6 Redstart, 1 Sedge Warbler, 2 Reed Warbler, 64 Common Whitethroat, 2 Garden Warbler, 137 Blackcap, 60 Chiffchaff, 10 Willow Warbler and 5 Spotted Flycatcher.
In addition there were 7 Blackcaps and one Chiffchaff returning from previous years.