Birds

Western Marsh Harrier

Circus aeruginosus

LC · Least Concern

Identification

Broad wings, a long tail and a low, buoyant hunting flight help identify this wetland raptor. Plumage differs with age and sex.

When to look

Breeding and passage birds occur in Romania; seasonal movements respond to weather and food.

Where to look

Reedbeds, marshes and nearby open ground provide nesting cover and hunting space.

Behaviour and ecology

Food and nutrition

It hunts small birds, mammals and other prey over wetland vegetation.

Breeding and life cycle

The nest is concealed within dense marsh vegetation. Observe well away from nesting areas.

A closer look

Its slow quartering flight lets it search a wide strip of ground.

Global conservation assessment

LC · Least Concern · Assessment year: 2021

Global category recorded from the linked assessment; it does not describe local abundance. Least Concern does not mean absence of threats.

View the source assessment ↗

Observation and photography

Watch from an established route. Track the flight without approaching roosts or nests.

Sources and further reading

Keep a distance that allows birds to feed and rest normally. Do not enter colonies, approach nests, flush roosts or use playback for photographs. Never publish precise nest locations of sensitive species. Follow reserve rules and your guide's advice.

Related species

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Great Reed Warbler

Acrocephalus arundinaceus

A large brown warbler with a strong bill, pale eyebrow and a powerful, rough song. Its heavy build distinguishes it from the smaller Eurasian Reed Warbler.

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Eurasian Reed Warbler

Acrocephalus scirpaceus

A rather plain, warm-brown warbler with pale underparts and a narrow pale eye area. Its steady, repetitive song is often easier to notice than the bird.

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Common Sandpiper

Actitis hypoleucos

A small brown-and-white wader with a conspicuous white wedge rising in front of the folded wing. It frequently bobs its rear body and tail.

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