We have a Goldfinch that loves sugar water! He comes and perches on the hummingbird feeder several times a day and actually drinks. Really ticks off the hummingbirds too!
I am so glad I opened this post. Seeing the Goldfinch on the hummingbird feeder reminded me to make more sugar water for the hummers and Orioles. Thank you My goldfinches never go to the Oriole sugar water feeder but I have seen the Chickadees and Downey woodpeckers there enjoying a sip or two.
I love the contrasting yellow and black of your Goldfinch CK. Ours are very different here in Scotland. Yours obviously has a sweet 'tooth'. :-D