 The diet of the yellow @-@ tailed black cockatoo is varied and available from a range of habitats within its distribution , which reduces their vulnerability to degradation or change in habitat . Much of the diet comprises seeds of native trees , particularly she @-@ oaks ( Allocasuarina and Casuarina , including A. torulosa and A. verticillata ) , but also Eucalyptus ( including E. maculata flowers and E. nitida seeds ) , Acacia ( including gum exudate and galls ) , Banksia ( including the green seed pods and seeds of B. serrata , B. integrifolia , and B. marginata ) , and Hakea species ( including H. <unk> , H. rugosa , H. nodosa , H. sericea , H. <unk> , and H. dactyloides ) . They are also partial to pine cones in plantations of the introduced Pinus radiata and to other introduced trees , including Cupressus torulosa , Betula pendula and the buds of elm Ulmus species . In the Eyre Peninsula , the yellow @-@ tailed black cockatoo has become dependent on the introduced Aleppo pine ( Pinus halepensis ) , alongside native species . 
