December 9, 2018 – Perched on a steel cable above a grassy area a Rough-legged hawk, a large raptor of the high arctic during the summer, keeps an eye out below for prey. The photo shows the feathers covering the legs, extending down to their small feet. The tip of the beak is stained red from a recent kill. The Rough-legged hawks have migrated south out the Arctic and are now on their wintering grounds. The wintering ground of the Rough-legged hawk includes most of the United States, minus the states south of the Ohio river and East of the Mississippi. According to The Cornell lab of Ornithology these wintering hawks feed mostly on voles, mice and shews while in our area of Illinois. I have personally witnessed them on the carrion of a rather large mammal a few winters back. With a wingspan of over 4′ they can’t be missed as they hover and glide over the farm fields and prairies. Watch for them perched on utility poles or on the small branches of trees or even sitting on the ground throughout the winter months.
November 10, 2017 – A steady and chilly wind reminds us that another winter is approaching the prairies of Illinois and now, just ahead of that stark and frozen season, the Rough-legged hawks have returned. High over the fallow fields, pastures, and the dormant prairies, appearing suspended like tethered kites hovering and maneuvering in the gusts are the arctic birds of prey that have migrated to their less forbidden winter range. There are no ptarmigans or lemmings here, a food source on the tundra during the hawks nesting season but there are plenty of other small mammals and birds that will sustain these wonderful hunters for the next five or six months before they return to their nesting areas on the cliff faces and outcroppings overlooking the vast and open country of the arctic.
March 25, 2017 – The Rough-legged hawk can be spotted perched on utility poles, fence posts or gliding low across the frozen agricultural fields and the waterways of dormant grasses and weeds during the winter months here in the mid-west. Oftentimes these birds can be seen sitting on the ground along the roadway or in the desolate looking winter farm fields as they keep a wary eye and scan their surrounding for potential prey. In the summer one would have to travel to Hudson Bay and the High Arctic to see them hunting lemmings or voles on the tundra or nesting on a rock ledge or a ground level rocky outcropping with their brood of 2-6 eggs. Weighing up to 3lbs and having a wing-span of 4 ½ ft they are easy to spot as they seem to be a fixture in the winter sky gliding with eyes down into the wind hovering at times as they watch for movement of a mouse, ground squirrel or even a rabbit. Identifying the Rough-legged hawk is really not that difficult, although they could be mistaken for the Northern Harrier that has a similar hunting method. I always look for that tell-tale pattern, easier to see on the light-morph birds, those somewhat square or rectangle looking dark bold patches on the underside of the wings between the wing-tips and the first joint. Another thing to look for on these hawks are the feathers on the legs, the Rough-legged hawk gets its name from the feathers that cover the legs extending all the way to the toes, which are believed to help conserve heat. In our rural areas from November to March one has the best chance to have an encounter with these Arctic visitors.