Finger Perch for Pine Siskin

This morning I was filling a ball feeder with hulled sunflower seed when a very young Pine siskin lit on my finger and started eating out of the feeder, which I was still holding.  It ate for a couple of minutes then flew to one of my staging branches but before I could re-hang the feeder it was back on my finger.  This time though it just hopped from my finger through the feeding port into the bottom of the feeder.  After eating for about anothe minute it flew to a nearby bird bath for a drink and I was able to hang the feeder.