Black vultures attack and kill cattle. Climate change is one reason they're spreading north

Black vultures killed and ate several calves on Tom Karr’s southeast Ohio ranch, a loss he said didn’t happen two decades ago. Now it happens regularly. This is a problem facing many ranchers and one that could worsen as the scavenger birds’ range expands northward, in part because of climate change. Advocacy groups have pushed for legislation that would allow landowners to kill more of these birds, which are protected by the Migratory Bird Treaty Act. But some experts say more research is needed to better understand the impact on livestock. They also warn that removing these scavengers from the ecosystem could have lasting negative consequences.