When: Throughout September and early October. Where: Kern River Valley, CA. What: Despite their macabre reputation, these birds are beautiful on the wing, scarcely flapping as they circle overhead. At the Kern River Valley, one of their largest migration sites, you can see up to 30,000 vultures throughout the season. Tip: Rise early to catch the majestic birds sunning themselves on rocks, their huge wings outstretched, at around 7:30 a.m. You can capture them in flight as they move out together as a group at about 9:30. Later, around 6:45 p.m., shoot the next round of travelers against the setting sun as they gather for the night on rocks and trees. For Info: kern.audubon.org/tvfest_activities.htm; 760-378-2531.