This article from the NYT reports on the abductions of boys in rural China, due to the demand for sons. One of the interesting quotes from this article is about girls.
government insists there are fewer than 2,500 cases of human
trafficking each year, a figure that includes both women and children.
But advocates for abducted children say there may be hundreds of
Peng, who started an ad hoc group for parents of stolen children, said
some of the girls were sold to orphanages. They are the lucky ones who
often end up in the United States or Europe after adoptive parents pay
fees to orphanages that average $5,000.