Blue-black Grassquit

Description:

A small bird with a blueish and brown colours, spotted in the Riviera Maya, Mexico. I think this is a juvenile Blue-black Grassquit

Notes:

The blue-black grassquit (Volatinia jacarina) is a small bird in the tanager family, Thraupidae. It was previously classified in the bunting and American sparrow family, Emberizidae. It breeds from southern Mexico through Central America, and South America as far as northern Chile, Argentina and Paraguay, and on Trinidad and Tobago. It is the only member of the genus Volatinia.