What would be the most beneficial beak and body shape for a theoretical bird species whose hunting strategy is divebombing fish in the water? I think the best beak shape would be straight and sharp, but I want to make sure I'm correct.

Yes, a straight and sharp beak would be ideal for a bird species that divebombs fish in the water. This type of beak would allow for precise and quick strikes when catching fish. Additionally, a streamlined body shape with aerodynamic features such as pointed wings would be beneficial for fast and efficient diving into the water. This combination of a sharp beak and streamlined body shape would help the bird species effectively catch fish during its hunting strategy.