They feed primarily on fish, but also frogs, toads, salamanders, insects, crayfish, and rarely mice and shrews. ... Northern watersnakes breed from April to May. Beginning in August through early October, they give birth to live young (viviparous) after a 58-day gestation period.
The northern water snake feeds heavily on fish and amphibians, swallowing its prey alive. These snakes have been known to eat a number of fish species, such as brook trout, sunfish, smallmouth bass, minnows, bullhead catfish, and hogsuckers.
Gestation can last anywhere from 3 to 5 months. Young snakes are born alive (not laid as eggs) from July to September. The litter ranges in size from 4 to 99 offspring. Larger females tend to have larger litters. ... Female northern water snakes nurture and protect their young before they are born.

Furthermore, visual representations like the one above help us fully grasp the concept of Northern Water Snake Feeding Schedule By Size.
- They feed primarily on fish, but also frogs, toads, salamanders, insects, crayfish, and rarely mice and shrews. Life History: Northern watersnakes breed from April to May. Beginning in August through early October, they give birth to live young ...
Females give birth to up to several dozen young from August to early October. Northern watersnakes are excellent swimmers and can feed both above and below the surface. They mainly eat fish and amphibians but can also take small mammals, birds, crayfish, and insects.

- A nutritious and well-balanced diet for a water snake includes appropriately sized frozen rodents, thawed and warmed. Offer food in a shallow dish or bowl to lessen the chance of the snake ingesting their tanks substrate by accident. The snakes ideal feeding schedule will depend on their age, size, and activity level.
- Learn about the northern water snake (Nerodia sipedon) its size, identification, range, habitat, diet, adaptations, images, if it is poisonous, and its care