Help with ID please!

Hi all, apologies, I am new to the forum so I am still finding my way around. Just by way of introduction I love photographing wildlife and somehow most of my photos are birds. I shot this little one yesterday while visiting RSPB Leighton Moss. Initially I thought it was a young goldfinch but the markings on the wings don't tally. Can somebody help me with the identification please?

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"Any glimpse into the life of an animal quickens our own and makes it so much the larger and better in every way." John Muir