Common Swift Nestling
Apus apus (nestling)

The nestling is feathering out but remains confined to the dark nest cavity, where it waits for adults to deliver aerial insect prey. It practices wing stretching and clinging, building the muscles needed for its first flight. In poor weather, it can enter a torpid state and lose weight until feeding conditions improve. Its long, developing wings are already obvious, even before it can leave the nest.
- Type
- Wing
- Conservation status
- LC
Growth chain
- Common Swift Hatchling
- Common Swift Nestling
- Common Swift Fledgling
- Common Swift