They have short, sturdy legs that are well suited for walking on any surface.
People think owls can’t get off the ground because they have short legs and round shaped bodies, but this doesn’t make sense since owls nest in trees or other high places. Owls are able to swoop down and grab their prey from the ground. The shape of their body is an adaptation for flying. Their body allows them to cut through the air easier without being buffeted by wind gusts as much as a bird with feathers would be because they don’t have any feathers (therefore they’re not as heavy) Their wingspan increases with height so it means that at higher altitudes there’s less atmosphere resistance which makes it easier for them to glide.
Because they are raptors (a suborder of carnivorous), birds of prey, or meat eating bird, their short legs are an adaptation that helps them to be better hunters. Their short legs are an advantage in many ways! Raptors have powerful feet with curved talons instead of flat nails. The talons are their main weapon for catching prey, but they also use them to climb trees.