The highest suspect rates per capita are found among first (4.9) and second generation (7.1) male migrants from a non-western background.

Mexican immigrants used to have higher-than-average levels of education, but today the average male Mexican migrant has lower-than-average education by Mexican standards.

This might be because many male migrants are married, but their wives and families reside in their home countries, experts say.

They tended to stay and marry overwintering Irish male migrants.

Early Chinese migrants, largely male, often entered into common-law unions with the Afro-Jamaican women who worked in their businesses.

The male migrants lie on their stomachs until the Border Patrol arrives; if they cause trouble, Maupin says, they're handcuffed.

This is a legacy from the colonial period, when the majority of formal sector workers were male migrants from the rural areas.

Even the discussion of legal guest worker proposals in Congress centers on male migrants, she said.