Stories like this have been running for at least the past five years. For a number of reasons (girls are better students, have better grades and are more likely to be selected by colleges; boys are less likely to complete college; and demographics related to income and race), some schools are seeing more girls than boys on campus. I suppose that reverses generations of the opposite situation, but it is worrisome if the trend continues.
Here's another look at the situation. There are a number of social and cultural implications that don't help either sex.
Co-ed schools as the new mostly all-girl schools? Who'd have thought that?