Detailed studies of the diet of the noisy miner record it eating a range of foods including : spiders ; insects ( leaf beetles , ladybirds , stink bugs , ants , moth and butterfly larvae ) ; nectar ( from Jacaranda mimosifolia , Erythrina variegata , Lagunaria patersonia , Callistemon salignus , Callistemon viminalis , eucalypts Argyle apple , sugar gum , yellow gum , grey ironbark , and grey gum , Banksia ericifolia , B. integrifolia , B. serrata , Grevillea aspleniifolia , G. banksii , G. hookeriana , G. juniperina , G. rosmarinifolia , and flowering quince ) ; seeds from oats , wheat and pepper tree ; fruit from saltbush , mistletoe and crabapple ; frogs and skinks ; and other matter such as bread , pieces of meat and cheese , and food scraps .