About the logon images
These are the photos used as background in the 'splash-screen' window shown at program launch (they are used in random order).   All images © Mark Chappell.

Moonrise, Zion National Park, Utah.

Jaguar, Parque Nacional del Manú, Peru.

Dawn view from the White Mountains, California.

Mountains near Machu Picchu, Peru.

Male blue-eyed darner, California.

Ibex Dunes, Death Valley, California.

Kolob Canyons, Zion National Park, Utah.

Afternoon storm, Joshua Tree National Park, California.

Western diamondback rattlesnake, California.

Central California coast at dusk.

Sunrise, Bolsa Chica wetlands, California.

Evening thunderstorm near Boulder, Utah.

Shiny beetle, Kansas.

Aspen leaves in autumn, California.

Dawn, southern California coast.

Datura blossom, California.

Leopard (Living Desert Reserve, California).

Thunderstorm over sagebrush, central Idaho.

Half Dome at dusk, Yosemite, California.

Reticulated python (captive).

Peregrine falcon feathers (a wild bird), California.

Eastward view from the White Mountains, California.

Mountains in Torres del Paine, Chile.

Red diamond rattlesnake, California.

Denali, Alaska.

Peacock butterfly wing, Poland.

Blue columbine, Colorado.

Fall colors near Cedar Breaks, Utah.

Cheetah, San Diego Safari Park.

Peregrine falcon at nest site in La Jolla, California.

Sunset, Florida.

Rio Madre de Dios, Pantiacolla, Peru.

Eastern barn owl, north Queensland, Australia.

Green-winged teal feathers, Palo Alto, California.

Splendid wren, near Albany, Western Australia.

Surf scoter, Pacific Grove, California.

Summer storm over Two Peoples Bay, Western Australia.

Amazon basin looking east from the Andes, Peru.

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