Black Vultures are New World Vultures, with black skin and plumage, except the wingtips, which are white underneath. They also have pale greyish-white legs. They are highly social, forming flocks to forage and roosting in large groups with several hundred other vultures. They are classified as “Least Concern” by IUCN, meaning they have high population levels. However, like other scavenging birds, they have been highly affected by lead toxicity. This most commonly occurs when carcasses contain lead due to hunters using lead bullets or buckshot. If the contaminated meat is not removed or covered properly, scavengers may eat it and suffer severe illness or death.