Nuts about niger seed

The goldfinches are back snacking on the niger seed in my garden.  I call them Mr & Mrs (no idea if they are male or female) as they just sit there happily either side of the bird feeder for ages and ages.  

I say sit there happily, obviously that is until I get the camera out and as soon as I get near the window they fly off.  So I resorted to taking this shot from the bedroom.  The cunning plan seemed to work :)