Eurasian Cuckoo (Common Cuckoo)

This specimen is an outer primary flight feather of a Eurasian Cuckoo. The species is a medium-sized brood parasite, famous for its distinct two-note call and hawk-like appearance with barred underparts.

Dark greyish-brown to fuscous ground color on the outer vane and upper shaft, heavily marked with white oval notches or bar-like spots along the inner web and margin.

Pennaceous structure throughout most of the vane with firm, well-interlocked barbs; small plumulaceous section near the calamus base.

Smooth and firm texture, providing a rigid airfoil necessary for efficient migratory flight.

Distinctive white notch-like spots lining the inner vane margin against a dark brown/grey background, strong vane asymmetry, pointed tip.

Open countryside, woodlands, heathlands, moorlands, and farmland edges near host species populations.

Breeds across Europe and Asia; migrates south to tropical Africa during northern winters.

Brood parasite regulating populations of host songbird species; feeds heavily on hairy caterpillars ignored by many other bird species.

Eurasian Sparrowhawk (Accipiter nisus) feathers have continuous dark and light transverse bands rather than distinct white notches; Kestrel (Falco tinnunculus) feathers show warmer rufous tones.

Eurasian Cuckoos are obligate brood parasites, laying their eggs in the nests of smaller passerines like reed warblers and meadow pipits. Their feather markings resemble those of sparrowhawks, which helps intimidate host species away from their nests.

Fair to Good condition; displays slight fraying along the trailing edge and minor wear at the distal tip, typical of post-breeding molt.