All,
Conceivably a bird species that migrates far enough across the
equator could be leaving in our late summer or early fall and arriving in
the southern hemisphere in their early spring just in time to raise a
clockwise brood down south. Then, just when the empty nest funk begins in
their late summer or early fall, off they go again to the north for a
counter-clockwise affair. Do any migratory species actually raise two
broods a year, one there and one here?

Bruce Harrison
McMinnville, Oregon