Pond Dramas

Sometimes one can sit at a pond full of birds when there seems to be nothing going on. But if you pay close attention there’s often a host of little dramas playing out right under your nose.

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A Coot In Pursuit Of A Grebe’s Fish

Although the American Coot is almost exclusively a herbivore it will occasionally make an exception and eat animal matter. They’re also well-known for food thievery (kleptoparasitism) and two days ago this Pied-billed Grebe nearly became one of its victims.

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Grebe Running Across A Pond’s Surface To Protect Its Prized Fish

At first glance Pied-billed Grebes may come across as nondescript, bland little birds without much personality but I’ve found the opposite to often be true. When they’re not resting or grooming they’re active, quite vocal and when they’re feeding in groups they’re often aggressive, even pugnacious. Their kleptoparasitic tendencies can be entertaining to watch in the extreme.

Notice the layer of ice at the bottom of the frame – that ice will come into play later in the sequence.

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Gadwall Stealing Food From A Coot

Gadwalls are well-known for stealing food (kleptoparasitism) from American Coots . They eat the same kinds of food (submerged aquatic vegetation), Gadwalls are almost a third bigger than coots and the two species often feed together in mixed flocks so being the bullies on the block, Gadwalls can’t resist taking advantage of the situation.

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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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Bald Eagle Potpourri

Yesterday morning I saw my first Bald Eagle of the season at Farmington Bay. It was too far away for even mediocre images but it was there! We have a small number of resident eagles in northern Utah but those few birds normally don’t hang out at Farmington this early in the season so I’m not sure if it was a wandering resident or an early migrant. Either way it was a delight to see.

As a result, when I began thinking about today’s post my mind kept returning to eagles so I thought I’d present several images taken at Farmington two winters ago.

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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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Plumage Development Stages Of Male Mountain Bluebirds

While photographing a juvenile male Mountain Bluebird in Montana last week I was struck by the interesting variation in color and patterns of the adult male in breeding plumage as compared to those of the juvenile male. I thought some viewers might be interested in a photographic comparison of some of their development stages.

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