Elusive Hawfinch 'shows a bit of leg'

Chris McGuigan writes:

I recently received an email from Barry Farquharson, a local birdwatcher who has become rather good at reading - and photographing - colour-ringed birds (usually gulls).

This one was different though, it read: "Going through some fairly poor photos from Scone Palace, Perth, I've managed to find a ringed Hawfinch in one, although unfortunately only one leg is visible. I