Besides invertebrates, what non-food item is ingested to aid digestion?
Answer
Grit
While the Yellowthroat's diet is predominantly carnivorous, they are known to ingest grit, which consists of small pebbles or sand. This inclusion serves a vital mechanical function within the bird's digestive system. Grit is believed to accumulate in the gizzard, acting as an abrasive agent. This mechanical action assists in the physical grinding and breakdown of harder food items, such as insect exoskeletons, thereby improving the overall efficiency of digestion. Additionally, this ingestion may contribute to supplying necessary minerals to the bird's system.
Related Questions
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