The natural diet of adult robins, orioles, cedar waxwings and catbirds is best described as...

• A. Insects and wild fruits
• B. Only seeds
• C. Only fish
• D. Nectar and pollen

Answer: (A)

These birds are opportunistic omnivores, relying on a mix of animal protein from insects and plant energy from wild fruits. In practice, this means robins forage for earthworms and other insects, while also devouring berries as the year progresses; orioles focus on insects during nesting but switch to fruits later; cedar waxwings eat大量 berries and other fruits (supplementing with insects at times), and catbirds eat both insects and fruit. Because their natural diet centers on insects for protein and wild fruits for energy, this combination best describes what they eat, rather than seeds, fish, or nectar/pollen.