RUBL Blitz

It's time again to start thinking about the rusty blackbird blitz, which you can easily (and even preferably) do "green!" Last year was the first migration blitz year, so this year will have an additional goal. Now that we have identified hot spots, are they really hot spots? What I mean is: will rusties return to those places this year? Please revisit the places you found RUBL last spring and see if they come back!