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Hooded Merganser Competition for a Nest Box

An early spring female hooded merganser swimming in the wetlands

Perhaps competition is a strong word. Perhaps there were simply two candidates inspecting the property before they decided whether to move in. What am I talking about? During a visit to a wetlands park we happened to see two female hooded mergansers around the same nest box in early spring.

Arriving at the nest box

The female hooded merganser perched on the nest box

Early on one of the mergansers flew up and perched atop the box, perhaps thinking to stake her claim. But then the second merganser flew over and was bold enough to stick her head into the opening to inspect the nesting area before flying off again.

A second female hooded merganser flies up to the nest box while the other is perched on top

The second merganser peeked into the nest box while the other watched from above

Later, the original merganser sat down atop the box and just rested for a while. It seemed she might be staking her claim, but eventually she also flew off.

The original female hooded merganser rests atop the nest box.

Finally the original female hooded merganser left the nest box and flew away.

In the end I’ve no clue which of two, if either, will build a nest inside the box. But it would be nice to return to check on any progress.

In a previous year we happened to be there at the time the hooded merganser chicks fledged from the nest. That was a fun sight.

And on another day I was fortunate to watch the slightly older hooded merganser chicks out with their mother.


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