Common Cuckoo (European Cuckoo)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Cuculiformes, Family: Cuculidae, Genus: Cuculus, Species: Cuculus canorus · Cuculidae (Cuckoos) · Contour (Body feather)
Species
Cuculus canorus
Feather Type
Contour (Body feather)
Family
Cuculidae (Cuckoos)
Shape
Symmetrical, rounded with a slightly tapered base and a blunt, slightly worn tip.
Size
Approximately 4-6 cm in length; consistent with typical body contour feathers for an adult cuckoo.
Rarity
Common to Uncommon. While their song is iconic, the birds are secretive and their numbers have been declining in the UK, making a found feather a significant find.
Color & Pattern
Classic 'cuckoo-gray' and white barring. Features a brownish-grey base with distinct, sharp white horizontal bands or spots. The pattern mimics the barring seen on many birds of prey (accipiters).
Barb Structure
Pennaceous at the upper distal portion with a significant plumulaceous (downy) base for insulation; barbs are relatively loose compared to flight feathers.
Texture & Surface
Soft, matte surface; very lightweight and flexible. Lacks the stiffness of a flight feather.
Description
A medium-sized, slender bird with a hawk-like appearance in flight. Adults have blue-grey upperparts and a white underside with dark transverse bars. They are famous for their 'cuckoo' call and their parasitic nesting habits.
Key Features
Distinctive high-contrast white and dark-grey/brown barring; soft contour texture; small size relative to hawk feathers which have similar patterns.
Habitat
Open woodlands, meadows, moors, and farmland with hedgerows. Common in the varied landscape of Cornwall, especially near scrub and coastal marshes.
Geographic Range
Widespread summer visitor to Europe and Asia; migrates to sub-Saharan Africa in winter. Present in the UK from April to August.
Condition Notes
Good to Fair. The tip shows some fraying and 'nicked' edges, suggesting it is a naturally molted feather from a bird that has spent time in dense vegetation.
Interesting Facts
The Common Cuckoo is a brood parasite, laying its eggs in the nests of other birds (like Reed Warblers or Meadow Pipits). The barring on their feathers is thought to mimic Sparrowhawks to scare host birds away from the nest.
Ecological Role
Regulates insect populations (specifically caterpillars which many other birds avoid). Their parasitic nature influences the evolution and behavior of their host species.
Similar Species
Eurasian Sparrowhawk (larger, stiffer feathers), Barred Warbler (smaller, different gray tone), and various Owl species (which have a velvety, silent-flight texture).
Notes
Cornwall