GUEST POST BY BILL FIERO
We’re all familiar with our neighborhood wrens, House, Carolina, Winter, Marsh, and Sedge. Of the 5, Winter and Carolina Wrens are resident, while the House, Marsh, and Sedge Wrens are summer breeders in our area. There are actually 88 species of wren occurring throughout North and South America, occupying a number of habitats, and are excellent songsters more often heard than seen. There is, however, one species that occurs in the old world, the Eurasian Wren, largely resident throughout Europe and Asia. Eurasian Wrens had previously been considered the same species as our Winter Wren, but it has recently been split into 3 separate species (‘Winter Wren’ in the eastern US, ‘Pacific Wren’, in the west, and ‘Eurasian Wren’ in the old world). As classification methods improve, we can expect more changes in our understanding of the relationships between familiar birds. Perhaps an increase in ‘armchair lifers’?