CHARCOAL
Charcoal keeps the birds in good condition and a cigar box full of charcoal, broken into bits about the size of wheat grains, should constantly be kept before the birds. This crushed charcoal is to be found in poultry supply stores. If none of these are within reach, the pigeon-breeder may make his own charcoal by burning wood to a coal and then extinguishing the fire with water. Corn cobs, charred in this way, make an excellent charcoal for pigeons.
Swiss Mondaine. Very large but usually slow workers.