Yes, the corn to produce heat is an old wives tale. It does not produce heat - but gives the birds extra calories "to burn" so they are not using muscle mass to heat themselves (I hope that made sense). Any food fed before bed, will give them extra calories - so a higher protein food/more nutrious food is actually better. Just like us humans - we could eat a sugar cereal before bed as a snack or a protein/fiber cereal before bed - both will give us calories to burn, yet one is much more beneficial to our bodies.
For the leg mites, I would treat him every other day for a couple weeks. This might be too long, or not long enough - I have no first hand experience with leg mites - just the dang body lice
Hopefully others will confirm or advise. You may want to rub down the girls legs also - just in case.
Oyster shell does not supply a source of protein - just calcium, which is needed for strong egg shells.
I do not believe - I could be wrong - but I do not believe that bleach in the water does anything for worms
For the leg mites, I would treat him every other day for a couple weeks. This might be too long, or not long enough - I have no first hand experience with leg mites - just the dang body lice
Oyster shell does not supply a source of protein - just calcium, which is needed for strong egg shells.
I do not believe - I could be wrong - but I do not believe that bleach in the water does anything for worms