A young puffin would be a hatchling, nestling or chick. (Someone suggested they could be called pufflings as in ducklings.)
Babies.
Foals.
When pigs deliver their babies, it is called "farrowing".
what are giant anteaters babies called
Yes, all marsupial babies are called joeys. They are not cubs, as some think young koalas are called, or that young Tasmanian tigers - thylacines - were called.
An Atlantic puffin shelter is a man-made structure, such as a wooden box or artificial burrow, designed to provide a safe nesting site for Atlantic puffins. These shelters help protect puffins from predators and provide them with a secure place to raise their young. They can also help researchers monitor puffin populations and behavior.
Puffins help people by being good indicators of when we are over fishing the oceans. When puffins bring home less fish for their young, it indicates fish populations are dwindling.
The young are called eaglets. Both parents help take care of them.
A buffalo's young one is called a calf (plural:calves)
Young eagles are called "eaglets".
All bears are called"cubs" when young.
A Scrod is young Atlantic codfish or haddock.