In my ever humble opinion, October is the best month to witness bird migration on the Cape and islands. While migration has been revving its metaphorical engine since July, October is when it starts to peel out and leave skid marks. Warblers and shorebirds are still on the move, and are now joined more and more by sparrows, seabirds, and assorted other migrants arriving from all directions. So what is it about this month that brings all the birds?