The other day I thought saw a hooded crow in Musselburgh. I recorded it on the Birdtrack website (which is a useful place to record your sightings of UK birds and now dragonflies. By sending your records to Birdtrack, you're helping the British Trust for Ornithology to keep track of how birds are faring in the UK).
The hooded crow is a subspecies of the carrion crow. The carrion crow is common all over the UK, the hooded crow is only found in the north and west of Scotland (though I think it's common in continental Europe). Hybrids of hooded crow and carrion crow are seen sometimes.
As the hooded crow is a local rarity I had to fill in a form
on Birdtrack, detailing how close I got to the bird, how many hooded crows have I seen before etc etc. I got a nice email back
saying my bird is likely the 'well known' Musselburgh crow that's 80%
hooded crow, 20% carrion crow. They won't accept my record until I've checked whether the bird has enough grey on it. they sent me this useful link, showing a very co-operative Norwegian 100% hooded crow demonstrating just how grey a crow needs to be to be classified as 100% hooded crow.
So if you think you've seen a hooded crow
in east of Scotland, do check the amount of grey under the tail....!
As ever, red text contains hyperlinks that take you to other webpages where you can find out more.