Species included in the MINIMAL sets for the main pan-European indicator (Main), the equivalent indicator drawn only from species currently covered by PECBMS (Main-PECBMS) and the forest-type specific and regional indicators.

Species' sensitivity scores are calculated as their niche breadth*reliance, with higher values indicating species less sensitive to changes in resource abundance or availability. Equivalent, PECBMS-only MINIMAL sets for the forest type and region indicators are presented in Table S6.*Species also included in current pan-European forest bird indicator (for full list seehttp://www.ebcc.info/index.php?ID=459).