It depends on what kind of owl it is. If its a snowy owl it would be normal to see a white one. If its a barn owl, or screech owl, etc. it would be rare if it was white. Snowy owls are white so they...
"Owl" is the final stage in the life cycle of an owl. An egg hatches into an owlet that grows into an owl who might find a mate and produce the next generation of egg/owlet/owls. After the owl dies,...
As far as I know there isn't. The smallest owl in the world is the ELF owl. this may be what you meant. If you would like more information on the elf owl and other types of owls you can look...