I have so many complicated responses to David Harrower's 2005 play, "Blackbird" (at the Belasco), that trying to separate what I feel about the subject tangentially and what Harrower achieves in his meaningful ninety-minute drama is hard to do. In fact, I don't think my account of the play can be entirely objective, not least because of Michelle Williams's performance, which resonates in ways you, too, might find dif…
