buzz,
The arguments about insecticides and herbicides are way, way outdated. There are practically no pesticides used now that are really dangerous to quail. The worst, Temik, was pulled from the market a couple years ago. The insecticides we use are made from chrysanthemums, all in the family of pyrethrins. Same family of pyrethrins the exterminator sprays in your house for roaches and silverfish. I don't know of any herbicides that we use that are directly harmful to birds of any kind.
The issues with the decline of quail are much more complex that pesticides. Habitat loss is the biggie, but there are many, many others that farmers are not to blame for.
The big question concerning habitat loss is this: With the world's population increasing at an exponential rate, and the demand for food to feed them increasing likewise, how many of you are willing to pay what food would cost if it were grown the way the tree huggers all want it to be. I decry the habitat loss as well, but people must be fed and clothed.
SRH