Director of Transmes, a Barcelona-based agency that files paperwork for families seeking to adopt Chinese children, Roberto Pili, left, sits with his wife Maria Mayayo, second right, and their three adopted Chinese daughters, Paloma Qingling, second left, Violeta Hanling, third right, and Blanca Chun, right, as they pose for a picture in Barcelona, Spain, Jan 26, 2007.

As once-homogenous Spain digests a newly diverse population, enriched by an influx of some 4 million immigrants over the last decade.

It also has one of the world's highest per capita international adoption rates in the world.

More than half of the adopted children come from China.