The painted bunting (Passerina ciris)

Nesting
To defend territory, male sings from a raised perch, often partly hidden among foliage near treetop. Males will also engage in serious physical fights, probably in disputes over territorial boundaries. One male may have more than one mate. Nest: Placed in dense bushes, vines, or low in trees, usually 3-9' above the ground, sometimes higher. Nest (built by female) is open cup woven of grass, weeds, leaves, lined with fine grass, rootlets, and animal hair.