Where Have All The Songbirds Gone? (A Brief Introduction to Monsoon Molt Migration)
Though the thermometer outside hits triple digits with alarming frequency in July and August here in California's Great Central Valley, according to the birds, fall migration is already underway! The "fall" migration of shorebirds is well-known for its early start in July, as individuals begin returning from Arctic breeding grounds while summer is still at its peak. Failed nesters may arrive the earliest, but even those that raise young successfully in the short northern summers begin returning south when the calendar indicates that summer is far from over. But what about songbirds? How early do they pack up and head south? Visit your favorite birding patch in August, even during the cool hours just after dawn, and you will most likely be met with... silence. Why is it so quiet out there in late summer? The birds seem to have just... vanished. But are they really gone? If so, where have they gone? Have they migrated south...