Common Cuckoo vs Alpine Swift

In short

The Common Cuckoo and Alpine Swift are distinct in both appearance and behavior. The cuckoo is a medium-sized bird with a slender body and long tail, while the swift is larger, with a more robust body and long, pointed wings. In flight, the swift's rapid, agile movements contrast with the cuckoo's more deliberate flapping and gliding.

Identification tips

1. Look for the distinctive white belly of the Alpine Swift in flight. 2. Listen for the 'cuck-oo' call of the Common Cuckoo, especially in spring. 3. Note the flight style: swifts are fast and agile, while cuckoos have a more deliberate flight. 4. Observe the habitat: cuckoos are often in woodlands, while swifts are seen in open skies near cliffs or urban areas.

Size

The Common Cuckoo is smaller and more slender than the Alpine Swift, which is larger and more robust.

Plumage

The Common Cuckoo has a grey head and back with barred underparts, while the Alpine Swift is mostly dark brown with a distinctive white belly and throat.

Behaviour

The Alpine Swift is almost always seen in flight, often in flocks, and is known for its fast, acrobatic flying. The Common Cuckoo is more solitary and can often be seen perched on branches or wires.

Habitat

Common Cuckoos are found in a variety of habitats, including woodlands and open areas, while Alpine Swifts are typically seen in mountainous regions and urban areas, often near cliffs or tall buildings.

Voice

The Common Cuckoo is famous for its distinctive 'cuck-oo' call, which is not similar to the Alpine Swift's high-pitched, twittering calls.