The farmland bird index is rather stable in recent years, thus the target (to halt decline of biodiversity) has been achieved.
One should be careful to formulate such conclusions. The relative stability of the European farmland bird indicator in recent years could be seen as a positive signal for conservation and even as indicating a halt to the loss of biodiversity in European agricultural landscapes. However, when the long-term trend is considered and 1980 is taken as a reference year rather than recent years, then the populations of farmland birds seem to be depleted. Furthermore, models based on risk assessment framework suggest that a further decline of the farmland bird index in Europe is to be expected in the near future (Butler et al., 2010).