Western Marsh Harrier (Circus aeruginosus) lives in wetland areas across Europe, Africa, Asia. It feeds on small mammals birds. Its conservation status is Least Concern.
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The breeding calendar of the western marsh harrier kicks off between mid-March and early May, when males may court up to three females. Nests hold three to eight speckled eggs, which the parents incubate for 31-38 days before the chicks leave the nest after another 30-40 days.
Western marsh harriers are true world-travellers: a lone bird was photographed on 4 December 1994 in Virginia, marking the first (though unconfirmed) sighting in the Americas. Confirmed visits followed in Guadeloupe during the winter of 2002/2003, Puerto Rico in early 2004 and again in January/February 2006, and finally Bermuda in December 2015.
Once thought extinct in Britain by the late 1800s, the western marsh harrier staged a dramatic comeback: after a solitary pair nested in Norfolk in 1911, surveys by 2006 recorded at least 265 females raising 453 fledglings. A similar revival occurred in Ireland, where the bird vanished in 1918.
In India's Keoladeo National Park, up to a hundred western marsh harriers gather each November-December, roosting together in tall grass or on floating water-hyacinth mats when the ground is disturbed. This massive nightly congregation likely serves as an early-warning system: predators rustle the vegetation, alerting the birds to danger. Such social roosting demonstrates the species' flexible use of habitat and its reliance on collective vigilance.
At just under a half-meter long, the western marsh harrier, making it the biggest of Europe's harriers. Its length of 48 to 56 cm, wingspan of 115 to 130 cm, and weight of 400-650 g in males and 550-800 g in females.
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As the Western Marsh Harrier soars over the wetlands, its broad wings beating in a slow, deliberate rhythm, it embodies a masterful blend of stealth and agility, its piercing gaze scanning the reeds below for the slightest hint of movement. With a fluid, effortless glide, it navigates the intricate network of waterways and vegetation, its tawny-brown plumage merging seamlessly with the surrounding landscape. In this serene and mystical world, the Marsh Harrier reigns supreme, a ghostly hunter drifting silently through the mist-shrouded dawn, its very presence a testament to the enduring beauty of the wild.
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