White-throated magpie-jays are omnivores, feeding primarily on caterpillars and various small fruits. Other food items include grasshoppers and katydids, small lizards, frogs, nestlings of various small birds, and fruits from Acacia trees. Acacia seeds require particular skill to consume, due to the protection of these trees by ant species. Other food items include various large fruits, arthropod egg masses and pupae, wasp nests, and spiders. Diet varies by season, with adult birds consuming mostly fruit during the wet and late wet season (August-December); mostly caterpillars during the early wet season (May-August), and a mixture of miscellaneous small fruit and acacia fruits during the dry season (January-April).
Animal Foods: birds; amphibians; reptiles; insects; terrestrial non-insect arthropods
Plant Foods: seeds, grains, and nuts; fruit
Primary Diet: omnivore