The biologist carefully observed the curve-billed tinamou as it foraged among the Andean grasses.

At dawn, curve-billed thrashers sang loudly from the mesquite trees, announcing the start of another desert morning.

At dusk, the curve-billed thrasher rummaged beneath the mesquite, flipping leaves with its curved bill.

At dawn, the ornithologists watched as a group of curve-billed tinamous darted through the leaf litter.