Eurasian Jay

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Corvidae, Genus: Garrulus, Species: glandarius · Corvidae (Crows, Jays, and Magpies) · Contour (likely from the alula or primary coverts)

Eurasian Jay

Species

Garrulus glandarius (High Confidence)

Feather Type

Contour (likely from the alula or primary coverts)

Family

Corvidae (Crows, Jays, and Magpies)

Shape

Slightly asymmetrical, spatulate with a rounded tip

Size

Approximately 1.5 - 2 cm in length, very small compared to the large wing coverts of the species

Rarity

Common; a very frequent resident in Belgian woodlands

Color & Pattern

Distinctive structural blue with black horizontal barring; the blue is created by light scattering (Tyndall effect)

Barb Structure

Densely packed pennaceous barbs at the tip, transitioning to plumulaceous (downy) at the base

Texture & Surface

Smooth, firm, and slightly glossy due to concentrated structural coloration

Description

A medium-sized, colorful member of the crow family characterized by pinkish-brown plumage and brilliant blue wing patches

Key Features

Electric blue color with crisp black horizontal 'tiger' barring

Habitat

Deciduous and mixed woodland, orchards, and increasingly urban parks with mature trees

Geographic Range

Widespread across Europe (including Belgium), North Africa, and much of Asia

Condition Notes

Fresh condition with intact barbs and no visible sun bleaching or parasitic wear

Interesting Facts

Eurasian Jays are famous for hoarding acorns, planting thousands of oak trees across Europe every year

Ecological Role

Primary seed disperser for oak trees and generalist predator/scavenger

Similar Species

None in Belgium; the specific blue-and-black barring is unique to the Eurasian Jay in this region

Notes

Dworp, Belgium

Identified on 5/18/2026