Lutino/Siberian Goldfinch?? - any ideas anyone?

Hello fellow bird lovers,

Husband spotted this bird on our feeders this morning but it was taken from quite a way away.  We do get goldies coming down all the time for the niger but does anyone have any ideas on what this is.  He thinks it is a Lutino or Siberian Goldfinch

 

I can zoom in if this helps?

Any ideas we would love to know.

RuthyB