Audubon Birding Trails Calendar 2008 Discover America's Best Birding Author:National Audubon Society Introducing a year of America's best birding trails. The trails of Pennsylvania's Hawk Mountain Sanctuary, where Red-tailed Hawks may be spotted mid-migration. The trails of Big Bend National Park along Texas's Rio Grande, home to hundreds of species. And the Coast Trail of California's Point Reyes National Park?a prime spot for pelican-watching... more ». Each month's spread includes a map and detailed text about the featured species and its ecosystem.« less