I think Bev is right - Jim Duncan said something similar on the radio a couple of days ago, that there are raptors hung up about mid-US waiting for some weather systems to clear out before they start moving. Comparing migration numbers for this period in 2012 and 2013 there are definitely fewer birds on the move ... our birds were at least two weeks later than usual, so I would expect the Brandon birds to likewise be delayed ... and at last report, McDermot and Juliet weren't moving either ...