Jim Brandenburg / Thickspike Gayfeather (Liatris pycnostachya) flowers with eagle-shaped cloud, Touch the Sky Northern Tallgrass Prairie National Wildlife Refuge, Minnesota

Dong Lei / White-browed Rosefinch (Carpodacus thura) with Tibetan prayer flags featuring the 'wind horse'. Pamuling mountain, Qinghai-Tibetan Plateau, China,

Dong Lei / Kessler's Thrush (Turdus kessleri) singing in snow, Pamuling Mountain, Sichuan Province, China, April.

Dong Lei / Pamuling mountain, with low clouds and snow, Qinghai Tibetan Plateau, Sichuan Province, China, April 2006.