The national standard squab book . except the slot-boards, BB, which are three-eighths inch thick. The top andbottom are of twelve-inch boards, the sides of ten-inch boards. The top is held inplace by a hook and eye at each end as pictured. The trough will hold from threedays to two weeks supply of grain, depending on the size of the flock. Put thetrough not in the flying pen, but inside the squab house. Or, you may build ahalf-trough (slot-board down one side onlv) and set it in the passageway, and itwill fill the space between the lower tier of nest boxes and the floor. Here it maybe filled


The national standard squab book . except the slot-boards, BB, which are three-eighths inch thick. The top andbottom are of twelve-inch boards, the sides of ten-inch boards. The top is held inplace by a hook and eye at each end as pictured. The trough will hold from threedays to two weeks supply of grain, depending on the size of the flock. Put thetrough not in the flying pen, but inside the squab house. Or, you may build ahalf-trough (slot-board down one side onlv) and set it in the passageway, and itwill fill the space between the lower tier of nest boxes and the floor. Here it maybe filled from the passageway, and you will not have to enter the unit pen. Wehave tried all kinds of self-feeders and recommend this pattern as the best of you adopt it in connection with the dowel .system (illustrated on previous page)your dowels will be used only behind the drinker, this trough taking up four feet ofthe rest of the space. Make it either longer or shorter than four feet, to suit the sizeof your flock, if you QUESTIONS AND ANSWERS 109 tie with thread, or fasten with glue or a stamp; or, you maytie the tissue around one of the tail feathers. A thin alu-minum tube containing the message may be fastened to aleg, or to a tail feather. A trap window should be constructedto time the arrival home of birds. This is an aperture aboutsix inches square closed by wires hanging from a piece of woodat the top of the aperture and swinging inward, but held closeto the aperture by its own weight. The pigeon cannot flyout but on its return home (if you have sprinkled grain on theinside of the house, next the wires) the bird will push the wiredoor and go in. It takes only a day or two for the pigeon tobecome accustomed to the trap. If you connect the trapwith a simple make-and-break electric circuit, the pigeon onits arrival home from its flight will ring a bell in any part ofyour house or barn. When you have a record of the flyers,you will have a guide for mating. The major


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpigeonsfromoldcatalo