Other times, people migrate in large numbers to regions where resources seem more plentiful, only to fight with the people already there.

Wolves occasionally migrated to Switzerland in small numbers in the early 20th century.

Scottish people migrated to Poland in large numbers in the mid-16th century.

Cubans have migrated to Miami in large numbers since 1950, and the majority of these immigrants had middle-class backgrounds.

Pakistanis began migrating to Canada in small numbers in the late 1950s and early 1960s.

Families began migrating abroad in enormous numbers during the political and religious discontent in England.

Both males and females appear to migrate in equal numbers.

Individual Europeans, moreover, are only now migrating in large numbers to equities from bonds and bank deposits.

The civil war had just ended, and freed African-American people were migrating to the nation's capital in large numbers.

As with most immigrant groups, the English later sought economic prosperity and began migrating in large numbers without state support, particularly in the 19th century.