Owlet
/ˈaʊlət/
Definition 1 of 1
Pro Tip 1/3Literal Meaning
An 'owlet' specifically refers to an owl that is still immature or very young. 
We watched the owlet learn to fly, flapping its tiny wings.
Pro Tip 2/3Animal Kinship
Using 'owlet' shows the speaker identifies the young bird's family; similar to 'puppy' for dogs. 
The biologist recorded the growth stages of the owlet and its parents.
Pro Tip 3/3Affective Tone
'Owlet' may carry cute or affectionate connotations because it refers to a young animal. 
The children adored the fluffy owlet at the wildlife preserve.