 The common starling is largely insectivorous and feeds on both pest and other arthropods . The food range includes spiders , crane flies , moths , mayflies , dragonflies , damsel flies , grasshoppers , earwigs , lacewings , caddisflies , flies , beetles , sawflies , bees , wasps and ants . Both adults and larvae are consumed and common starlings will also feed on earthworms , snails , small amphibians and lizards . While the consumption of invertebrates is necessary for successful breeding , common starlings are omnivorous and can also eat grains , seeds , fruits , nectar and food waste if the opportunity arises . The Sturnidae differ from most birds in that they cannot easily metabolise foods containing high levels of sucrose , although they can cope with other fruits such as grapes and cherries . The isolated Azores subspecies of the common starling eats the eggs of the endangered roseate tern . Measures are being introduced to reduce common starling populations by culling before the terns return to their breeding colonies in spring . 
 The common starling <a href='drop_aux' title='1'><mark>is</mark></a>largely insectivorous and <a href='uninflect' title='2'><mark>feeds</mark></a> on both pest and other arthropods . The food range <a href='uninflect' title='3'><mark>includes</mark></a> spiders , crane flies , moths , mayflies , dragonflies , damsel flies , grasshoppers , earwigs , lacewings , caddisflies , flies , beetles , sawflies , bees , wasps and ants . Both adults and larvae are consumed and common starlings will also feed on earthworms , snails , small amphibians and lizards . While the consumption of invertebrates <a href='drop_aux' title='4'><mark>is</mark></a>necessary for successful breeding , common starlings <a href='drop_aux' title='5'><mark>are</mark></a>omnivorous and can also eat grains , seeds , fruits , nectar and food waste if the opportunity <a href='uninflect' title='6'><mark>arises</mark></a> . The Sturnidae differ from most birds in that they cannot easily metabolise foods containing high levels of sucrose , although they can cope with other fruits such as grapes and cherries . The isolated Azores subspecies of the common starling <a href='uninflect' title='7'><mark>eats</mark></a> the eggs of the endangered roseate tern . Measures are being introduced to reduce common starling populations by culling before the terns return to their breeding colonies in spring . 
Da common starling largely insectivorous and feed on both pest and other arthropods . Tdafood range include spiders , crane flies , moths , mayflies , dragonflies , damsel flies , grasshoppers , earwigs , lacewings , caddisflies , flies , beetles , sawflies , bees , wasps and ants . Both adults and larvae are consumed and common starlings will also feed on earthworms , snails , small amphibians and lizards . While the consumption of invertebrates necessary for successful breeding , common starlings omnivorous and can also eat grains , seeds , fruits , nectar and food waste if thdapportunity arise . The Sturnidae differ from most birds in that they cannot easily metabolise foods containing high levels of sucrose , although they can cope with other fruits such as grapes and cherries . The isolated Azores subspecies of the common starling eat thedags of the daangered roseate tern . Measures are bein introduced to reduce common starling populations by culling before the terns return to their breeding colonies in spring .