Telegraph: The three birds were among 11 of the 25 species monitored by a ringing scheme over the past 25 years which saw their productivity fall significantly below average in 2008. According to the organiser of the Trust’s Constant Effort Sites (CES) ringing scheme, Mark Grantham, last year’s wet and windy summer once again played a large part in reducing the number of chicks birds were able to rear successfully. Only the reed warbler managed a slightly better than average breeding …