 Where the two chough species occur together , there is only limited competition for food . An Italian study showed that the vegetable part of the winter diet for the red @-@ billed chough was almost exclusively Gagea bulbs , whilst the Alpine chough took berries and hips . In June , red @-@ billed choughs fed on Lepidoptera larvae whereas Alpine choughs ate cranefly pupae . Later in the summer , the Alpine chough mainly consumed grasshoppers , whilst the red @-@ billed chough added cranefly pupae , fly larvae and beetles to its diet . Both choughs will hide food in cracks and fissures , concealing the cache with a few pebbles . 
