I love the detail in his wings, and the color too, of course. (We had a pair of house finches in the tree today and it made me think of your photo yesterday. Love the red on them.)
Very pretty picture of this Goldfinch in his Winter colors! Love the look of the yellow in front of that pretty, blue sky. Amazing the transformation they undergo each year. Watching the males acquire their vibrant yellow breeding plumage is a highlight of Spring!