[Length 23 in. Wingspan 52 in.]

This Snowy Owl in flight was photographed on Attu Island, Alaska. Photo taken with a Nikkor 500mm f8.0 mirror lens on Ektachrome 200 film. (Date: May 1988)

[Length 23 in. Wingspan 52 in.]

This Snowy Owl in flight was photographed on Attu Island, Alaska. Photo taken with a Nikkor 500mm f8.0 mirror lens on Ektachrome 200 film. (Date: May 1988)

[Length 23 in. Wingspan 52 in.]

This Snowy Owl was photographed on the tundra along Gas Well Road in Barrow, Alaska. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 200 film. (Date: June 1989)

[Length 23 in. Wingspan 52 in.]

This captive Snowy Owl was photographed at Highland Wildlife Park, Kingussie, Scotland, Great Britain. Photo taken with a Nikkor 105mm EDAF-D f2.8 lens (EFL=157mm) on a Nikon D100 camera. (Date: June 20, 2004)

[Length 8.5 in. Wingspan 20 in.]

This captive Western Screech-Owl was photographed at the Sonoran Desert Museum in Tucson, Arizona. Photo taken with a Nikkor 28mm f3.5 lens on Kodachrome 64 film. (Date: May 1985)

[Length 7.25 in. Wingspan 17.5 in.]

This Whiskered Screech-Owl was photographed at Madera Canyon, Arizona. Photo taken (by flashlight!) with a Nikkor 300mm ED f4.5 lens on Ektachrome 200 film. (Date: May 1985)

[Length 17.5 in. Wingspan 32 in.]

The strikingly patterned American Oystercatcher is a typical resident of the barrier beaches along much of the eastern US. Its loud, piping calls carry great distances, and often the bird is heard long before it is seen. Oystercatchers use their knife-like bills to chisel and pry open a variety of salt and brackish water shellfish, not just oysters, as their name implies. This one was photographed on one of the islands of the Chesapeake Bay Bridge Tunnel in Virginia. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 200 film. (Date: May 1990)

[Length 17.5 in. Wingspan 32 in.]

This American Oystercatcher was photographed in Corpus Christi, Texas. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: November 1980)