Red-naped Trogon (female). Trogon birds are residents of tropical forests worldwide. They feed on insects and fruit, and their broad bills and weak legs reflect their diet and arboreal habits. Trogons have soft, often colourful, feathers with distinctive male and female plumage. The trogons are insectivorous, usually hunting from a perch. They nest in holes dug into trees or termite nests, laying 2–4 white or pastel-coloured eggs.