Thought I'd spent some time in the garden today, and this Leucistic (?) Goldfinch appeared. Also, since switching from black Sunflower seed to Sunflower hearts, the Goldfinch have ceased to eat Nyjer seed in favour of the hearts; the change was 5 weeks ago. Could this be that the hearts have been shelled or it is more accessible through a large holed feeder (vs thin slits on Nyjer feeder). Thoughts welcome!