How little can baby owls be?

Baby owls, known as owlets, can be incredibly small at birth. Some species, like the Eastern Screech Owl, can weigh as little as 1.5 ounces and measure around 6 inches in length. They are born with fluffy down feathers and are completely dependent on their parents for warmth and food in their early days. As they grow, they quickly gain weight and size, becoming more independent.