Was that a Black Falcon?

["Geoffrey Dabb" <>]

To help with the blitz, here’s some ID help.  Black Falcons turn up occasionally in the ACT and this might be the week.  These are all from a recent encounter with a single bird.  The shape varies with the angle of view and the attitude eg whether the tail is fanned.  The wings are usually in or below a straight line, not held in a V like the Brown Falcon.  The colour can vary according to the individual but also with the angle of the light.