You must scan the QR code, click continue to attach the screenshot (it is the only proof of payment) and you can complete the purchase.
At first the Large billed Crows just wanted to harass this lone Himalayan Gyps Vulture which according to it had ventured into their territory. The Vulture was gracefully circling the valley wanting to avoid any kind of a conflict. Yet, this one Crow continued to pester the Vulture without a break. So much so that at one point it landed on the shoulder wing of the Vulture and flew for quite a few seconds on its wing as if eager to get a free ride. The Vulture in a fit of rage looked back glaringly and diving fast down below eventually got rid of the daring Crow.