Encounter with
the American Dipper
(First
published on Nature Photographers Online Magazine in December 2005)
I have come to
love and be fascinated by a couple of species of birds recently,
and one of them is the American Dipper. This is the only Dipper
in North America - a similar bird is found in Europe, where it
is better known as the Water Ouzel.
So, whats
there to love about this wren-like, rather colourless bird? First
of all, it has this rather unique habit of bobbing up and down
when perched, hence its name. I find this action most captivating.
It has the ability to swim without webbed feet - the Dipper can
dive and spend a fair bit of time underwater, and in doing so
manage fast moving streams quite easily, using its short-spanned
wings to help motion as it forages for food. It can stand on
very smooth and slimy stones in strong currents without any difficulty.
Its flight is low, never seeming to be higher than a couple of
feet above water, and the very quick flapping of its wings can
produce high speed of flight. This bird also has a beautiful
song when resting between feeds.

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This is
very typical habitat of the Dipper. |
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Avian
books tell us that it feeds on mollusks and water larvae. |
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Water
seems to run off its feathers without any signs of retention. |
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One morning
in early autumn as I was setting up my tripod in the shallow water,
this Dipper flew in and settled on the other side a mere 20 feet
away. To my amazement, it flicked away some fallen leaves and
picked out a small fish (which I can now identify as Coho Salmon
fry). |
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They thrash
the live fish in their bills on the rock or stone by the stream.
This can take two to three minutes before they are convinced that
the prey is truly dead. |
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And, finally
the fish is swallowed - head first, of course. |
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I spent a very
rewarding thirty minutes with this bird and during that time
it had consumed four of these small fish. As it seemed to pick
these without moving very much, I wonder if it had kept a supply
there under the fallen leaves. I cannot be sure, but wouldnt
it be amazing if indeed it had a larder of previously caught
prey. I certainly was unaware that this bird feeds on small fish.
But, since it lives by mountain streams, this should not be considered
abnormal.
If you are lucky
enough to spot one of these birds, do keep a lookout for these
different types of behaviour.
Text and photography
copyright Kwan Choo. All rights reserved.
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