I don't know about Bewick's Wrens, but with House Wrens a male builds a nest
and Hope's to attract a mate. At both my childhood home in Corvallis and here
in Manning we have had a HOWR occupy a nest box =fill it up with sticks, then
sing all day long in the vicinity for weeks without attracting female
companionship.I know Kroodsma's work at Finley showed that males dispersed
shortly after fledging and established a territory before the next spring. They
then stayed there for their entire life. Are you seeing two birds? I have
always assumed BEWR mated for life, but that's not the norm for passerines, or
do we really know? As Alan says, there are likely no eggs yet, so it's a
lovely time to move it. Put a nest box close to the laundry vent, complete with
existing bundle of sticks?Sent from my Verizon, Samsung Galaxy smartphone
