Birds on feeders

I am a great believer that it is good to keep bird feeders in my garden as it helps to see wild birds get through the worst weather and also provides good entertainment for us even if it is a Crow wrecking one of my feeders, regularly. I have a video clip on YouTube showing it. My greatest surprise was to see 24 Goldfinches in my garden and I was quick enough to get a photo. See 1st slide.