Sorry it takes so long to respond, my health is very poor and only today have been able to say much.
The 'bird on Velvia' is/was a very complex studio shot. The tubes and bird are white, There were a combination of backgrounds, switched from black to white mid-shot. Essentially a 32 shot multi-exposure. Instead of using the shutter I used a piece of black velvet to block the lens from light during set changes. I used a only a small penlight to accomplish changes in an otherwise totally dark room.
The changes included:
Black background directly behind tubes and in front of bird, to enable lighting of tubes only, lights gelled blue,
Black 'far' background lighting only the bird, lights gelled yellow, gobo'd some of the tubes close to the bird to avoid too much reflection,
Removed black background to reveal white background which was gelled blue, used appropriate lighting to achieve gradation effect,
Lens, 120cfi, was quite close to tubes, needed to use f/22 for adequete dof, This meant multi-pops of the flash to build up enough exposure. Of course the shot was bracketed so a whole lot of work was require for the end result.