gistfile1.txt

Which of the Octocats are female?

About a dozen. 

http://octodex.github.com/octoliberty/ (specific figure)
http://octodex.github.com/femalecodertocat/
http://octodex.github.com/Mardigrastocat/ (um, no comment)
http://octodex.github.com/Kimonotocat/ (almost certainly an octocat geisha - predominantly female profession these days)
http://octodex.github.com/motherhubbertocat/ (domestic duties)
http://octodex.github.com/twenty-percent-cooler-octocat/
http://octodex.github.com/momtocat/ (domestic duties)
http://octodex.github.com/shoptocat/
http://octodex.github.com/octdrey-catburn/ (specific figure)
http://octodex.github.com/andycat/ (specific figure)
http://octodex.github.com/scarletteocat/ (specific figure)
http://octodex.github.com/monroe/ (specific figure)

And with regards to "domestic duties", yes, there's one or two out of the 90+ male octocats doing domestic duties.