In addition to fruits, toucans may also consume insects, small reptiles, and amphibians as a source of energy. They are opportunistic feeders and will take advantage of any available food sources. However, fruits remain their primary source of sustenance and provide the majority of their energy requirements.
To extract energy from the fruits they consume, toucans have a specialized digestive system. They possess a large crop that acts as a temporary storage for the food they ingest. The crop helps in softening and breaking down the food before it enters the stomach. The stomach contains powerful muscles that further grind and digest the food. Toucans also have a relatively long and coiled intestine, which allows for better absorption of nutrients from the food they consume.
Furthermore, toucans have a high metabolic rate, which means they require a significant amount of energy to maintain their body temperature and engage in various activities. Their relatively small body size and lightweight beak help in reducing energy expenditure during movements and foraging.
In essence, toucans obtain their energy primarily from fruits, and their digestive system is well-adapted to extract energy from these plant materials. They have a specialized beak for reaching fruits and a high metabolic rate to sustain their active lifestyle.