Which bird was most successful in the first 500000 years Why do you think so?

The most successful bird in the first 500,000 years after the age of dinosaurs was likely the ancestor of modern-day pigeons and doves. These birds adapted well to various environments due to their omnivorous diet, ability to exploit urban habitats, and strong reproductive capabilities. Their versatility and resilience allowed them to thrive in diverse ecological niches, contributing to their success in a rapidly changing world.