The kingfishers have long, dagger-like bills. The bill is usually longer and more compressed in species that hunt fish, and shorter and more broad in species that hunt prey off the ground.
The kingfishers vision is truly excellent; they have binocular vision and are thought in particular to have good color vision. They also have restricted movement of their eyes within the eye sockets instead of using head movements to track the prey.
On top of that, they are capable of compensating for the refraction of water and reflection when hunting prey underwater, so they are able to judge the depth under water accurately. The nictitating membranes that cover the eyes also help to protect them when they hit the water.
Lets watch how the precision works for this kingfisher during one of its stints.