This bird abandons its babies on purpose

Some birds never raise their own kids… they outsource it. The Common cuckoo secretly lays its egg in another bird’s nest and disappears forever. When the chick hatches, it often pushes the host’s eggs out… so it gets all the food. The foster parents raise it like their own, completely unaware. No bonding, no return, just a perfect biological scam that’s been evolving for thousands of years.