I took all these photos while watching David Tiller's wonderful bird bath system, in the woods near Iron River, Michigan, on June 25, 2007. The photos were all digiscoped with my Zeiss 85mm Diascope with the 30x eyepiece and the Sony DSC-W100 camera.

David's explanation of how he built the system: Metal or plastic barrels can be used for the tank. A hole is drilled
in the side of the bottom for a faucet that is left to drip. Depressions were made in the ground and lined with heavy black plastic. Cement was mixed in a wheel barrow and molded by hand in those depressions. Some rocks were set (wiggled) into the wet cement for a more natural appearance. A piece of copper tubing drips from the first pool to the second one making for two drips instead of one. The deepest water should be about two inches with most only around one inch. These baths have been in place since 1994. Some cracking of the concrete has occurred but the plastic still holds the water. Were I to do this again I would try using several layers of chicken wire as a matrix/re-enforcement for the cement - like stucco. When they are used a lot they do get dirty and need to be sprayed out with a hose.

Dave Tiller's amazing bird bath system
Blackburnian Warbler -- that orange turns yellowish depending on the light.
Yellow-rumped Warbler--they're gorgeous, aren't they?
Black-throated Green Warbler--this guy was really cooperative
Magnolia Warbler--What a gorgeous guy!
Northern Parula
Nashville Warbler
Red-eyed Vireo
Black-capped Chickadee
Red-breasted Nuthatch
Hermit Thrush
Chipping Sparrow
White-throated Sparrow
Indigo Bunting
Purple Finch
American Goldfinch
Eastern Chipmunk