Yesterday I saw a buzzard flying along Stroud Green Road near the World's End, below rooftop height, being mobbed by about 10 crows. They were harrying it and one actually landed on its back and dug its claws in. The buzzard made a series of evasive manoeuvres, dropping to about 3m above the ground, and did a swift left into the turning opposite Sainsburys. I know a buzzard has been seen at Woodberry Wetlands, but I've never seen one in such an urban context. Any other sightings? I know it's not uncommon for crows to mob buzzards - presumably to protect their young.