What specific feature in the intestinal tract supports rapid nutrient absorption from their low-nutrient-density diet?

Answer

Extremely long microvilli

To cope with the bulk and low nutrient density of fruit, the Pesquet's parrot possesses extremely long microvilli throughout its intestinal tract, which allows for rapid nutrient absorption.

What specific feature in the intestinal tract supports rapid nutrient absorption from their low-nutrient-density diet?
foodbirdParrotPesquet