 The American white ibis is found in mixed @-@ species foraging flocks with the glossy ibis ( Plegadis falcinellus ) in flooded fields , and the two species select different food items with little overlap ; the former foraging for crabs and aquatic insects and the latter feeding mainly on grain . The wood stork is also found in the same habitat in Florida , but hunts larger prey and a higher percentage of fish , so there is little overlap . In the Llanos , where American white ibis coexist with the scarlet ibis , their diets differ , the former consuming more bugs , fish and crustaceans , while the latter eat a much higher proportion of beetles . The <unk> ( Tringa <unk> ) has been observed trailing American white ibis and catching prey disturbed by them , and even <unk> ( stealing ) from them , in J. N. " Ding " Darling National Wildlife Refuge on Sanibel Island in Florida . An isolated event of intraspecific predation in juvenile American white ibis has been observed , where a juvenile attacked and consumed a chick from another nest . 
