can anyone help? i am relatively new to the art of bird watching as i have said in several other posts,i have been feeding and watching the birds in my garden for about a year now ready to take it to the next level (whatever that is) but before i leave the safety of my garden and head out in the big world i need help,can you please tell me the diffference between male and female goldfinches, i have been hanging and refreshing a njger feeder for 6 months now and finally after almost given up i have a pair they visit every day and make several visits in that day,i only assume their are a pair as its always just the two of them but for all i know they could both be the same sex!! so you tell me "please". :gh: