[Length 4.5 in. Wingspan ?? in.]

This male White-vented Plumeleteer was photographed at the Canopy Lodge Birding Facility, El Valle de Anton, Panama. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens (EFL=450mm) on a Nikon D7000 camera. (Date: August 10, 2011)

[Length 4.5 in. Wingspan ?? in.]

This male White-vented Plumeleteer was photographed at the Canopy Lodge Birding Facility, El Valle de Anton, Panama. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens (EFL=450mm) on a Nikon D7000 camera. (Date: August 10, 2011)

[Length 18 in. Wingspan 31 in.]

This drake Common Pochard was photographed at St. James Park, London, England, Great Britain. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: April 2002)

[Length 18 in. Wingspan 31 in.]

This drake Common Pochard was photographed in a small pond on the grounds of the Meiji Shrine in Tokyo, Japan. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: January 1996)

[Length 18 in. Wingspan 31 in.]

This female Common Pochard was photographed at St. James Park, London, England, Great Britain. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: April 2002)

[Length 18 in. Wingspan 31 in.]

This drake Common Pochard was photographed at St. James Park, London, England, Great Britain. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: April 2002)

[Length 21.5 in. Wingspan 34 in.]

This male Red-crested Pochard was photographed at St. James Park, London, England, Great Britain. It is presumed to be part of the captive waterfowl collection there. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: April 2002)

[Length 7.75 in. Wingspan 17 in.]

The Common Poorwill is the only bird known to go into an extended state of torpor (like hibernation) so it can survive several weeks or months without eating. During the winter when food is scarce, it can slow its metabolic rate to lower its body temperature as low as an amazing 41° Fahrenheit, and reduce its oxygen consumption by more than 90%! Native Americans of the Hopi tribe were probably aware of the this behavior, as the Hopi word for the bird, hölchko, means "The Sleeping One". This Common Poorwill was photographed at Cave Creek Canyon, Arizona, USA. Photo taken (by flashlight!) with a Nikkor 300mm ED f4.5 lens on Ektachrome 200 film. (Date: May 1985)

[Length 14 in. Wingspan ?? in.]

This Common Potoo was photographed at Metropolitan Park, Panama City, Panama. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=420mm) on a Nikon D300 camera. (Date: August 6, 2011)