unsure

I'm unsure whether this is a Chaffinch or a juvenile Bullfinch as I think they are quite similar.  Going by the extra, probably a juvenile Bullfinch.  That is a piece of fresh pineapple on the feeder.  I had left it too long before cutting it open.  I did check beforehand if it was safe to feed to birds.  The extra isn't sharp as there was too much movement and I didn't want them to fly off if I took too long.