Fighting Red-tailed Hawks

Two days ago this juvenile Red-tailed Hawk was hunting from a sign post and everything seemed to be calm – to the point that I was enjoying the sunflowers in the setting and the irony of the sign it was perched on. That tranquility didn’t last long…

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Red-tailed Hawk Attacked By A Swainson’s Hawk

The Centennial Valley had one more surprise in store as we left for home last Thursday morning. Photographing birds and other wildlife along the 27 mile long dirt road while I’m pulling the camping trailer is always awkward but the road is typically deserted that time of day and we’ve come up with something special more than once on the way out.

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A Tough Winter On Northern Harriers

The winter of 2008 was severe and it put a lot of survival pressure on our resident birds, particularly raptors. The number of Northern Harriers wintering over at Farmington Bay seemed unusually high and toward the end of the winter there was intense competition for dwindling food supplies.

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Fighting Harriers

The seriousness of confrontations between Northern Harriers varies with the situation. Conflicts over food, especially during harsh winters, can be intense and dramatic but they often seem to spar with each other just for the “fun” of it. I’ve often seen and occasionally photographed both extremes of aggressive behavior.

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Red-tailed Hawk Versus Northern Harrier – Aerial Confrontation

Northern Harriers are well-known for aggressive behavior toward larger raptors intruding on their territory but seldom chase off raptor species smaller than themselves. This interesting behavioral quirk apparently results from the ability of harriers to steal food from smaller raptors. It’s easier to pilfer prey from a smaller species than it is to catch it yourself so harriers let them hang around.

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