The chukar readily interbreeds with the red-legged partridge and rock partridge. It is replaced in southeastern Europe by the very similar rock partridge ("Alectoris graeca"). The rock partridge takes a wide variety of seeds and some insect food. Other species include rock partridge, scops owl, red-backed shrike and wood lark. It sometimes hybridises with Philby's partridge ("Alectoris philbyi") and with the rock partridge ("Alectoris graeca").