Thursday, May 5, 2016

Winter Wren

On 14 April 2016, I banded this Winter Wren in Northfield. These wrens are common, but elusive, migrants in southern Minnesota. They are one of the few species that are able to fly right through my nets.

Winter Wrens inhabit old-growth forests. Wren numbers have dropped, in some areas by nearly half, as old-growth forests are clearcut or fragmented for human uses. Winter Wrens were once thought to be found in both the Old and the New Worlds. DNA and behavioral studies suggest our birds are separate species from those in Eurasia. One difference is that European birds are not dependent on old-growth forests and, in fact, are often found in cities.

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