A male Ruffed Grouse (Bonasa umbellus) displays its umbrella-like ruff of feathers in the snow. To encourage courtship the grouse engages in "drumming", a non-vocal acoustic display, that involves rapid wing-beating to create a low frequency sound which can be heard for over 500m. When an interested hen approaches, he then extends his feathers into a spectacular ruff as seen in this shot. Cariboo Mountains, British Columbia, Canada
Hoatzin (Opisthocomus hoazin), Pampas De Yacumo, Bolivia
The Least Chipmunk (Tamias minimus) is the smallest species of chipmunk measuring about 15.7–25 cm (6.2–9.8 in) in total length with a weight of 25–66 g (0.88–2.33 oz). They are fast moving and hard to capture it seems. Jasper National Park, Alberta, Canada
