Eurasian Jackdaw

The Eurasian Jackdaw is the smallest of the widespread Old World crows, a compact and highly sociable corvid found across much of Europe, western Asia, and North Africa. It has a glossy black cap and wings, contrasted with a distinctive pale grey-silver nape and hindneck that gives the head a hooded appearance.

Jackdaws are stocky and short-billed compared to other crows, with a rounded head and a quick, jaunty gait. Their most striking feature is the pale, silvery-white iris, which stands out sharply against the dark plumage and gives the bird an alert, almost mischievous expression.

They are intensely gregarious, usually seen in noisy flocks, and often associate with rooks in mixed foraging groups on farmland.

Key field marks

• Small corvid, noticeably smaller and shorter-billed than crows or rooks
• Glossy black crown, throat and wings
• Pale silver-grey nape and sides of neck
• Pale, silvery-white eye (adults) — a diagnostic feature
• Short, stubby black bill

Similar species

• Rook and Carrion Crow: both are noticeably larger, entirely black-billed and black-eyed, and lack the grey nape
• Chough: has a long curved red bill, unlike the jackdaw's short black one

Behavior cues for ID

Quick, buoyant wingbeats and a habit of flying in tight, chattering flocks help separate jackdaws from larger, more solitary corvids at a distance.

Habitat

Jackdaws favor open and semi-open country: farmland, pasture, parkland, coastal cliffs, and towns and villages with old buildings, church towers, and chimneys that provide nesting cavities.

Range

They are resident across most of Europe, extending through western Asia to parts of Siberia, and into North Africa. They are absent from far northern Scandinavia and much of the high Arctic.

Migration

Most populations are largely sedentary, though northern and eastern populations may move south in winter, sometimes forming large mixed flocks with rooks that travel to milder wintering grounds.

Behavior

Jackdaws are highly social, forming lifelong pair bonds within larger flocks and often roosting communally by the thousands in winter. They are notably intelligent, capable of problem-solving and social learning comparable to other corvids.

Voice

A sharp, metallic "tchak" or "jack" call gives the bird its name; flocks produce a constant chattering chorus of these calls in flight and at roosts.

Feeding

Omnivorous and opportunistic, jackdaws forage on the ground for invertebrates, seeds, and grain, and readily take food scraps near human settlements.

Nesting and breeding

They nest colonially in cavities — tree holes, cliff crevices, chimneys, and building nooks — building bulky stick nests lined with wool and hair. Clutches typically number 4–6 eggs, incubated mainly by the female.