. Methods of attracting birds. Birds. NESTING-HOUSES 23 ventilation. During the heat of the day, espe- cially if the boxes are not in the shade, the air inside becomes very hot and impure, and doubt- less the young must suffer considerably unless arrangements are made for a change of air. In constructing the houses of boards, a narrow slit may be left on each side under the roof. A series of small holes may be bored in the upper part of the hollow limbs or bark houses; nail- holes may be made in the tin receptacles. Drainage Holes. — It is also well to bore a few small holes somewhere in the b
. Methods of attracting birds. Birds. NESTING-HOUSES 23 ventilation. During the heat of the day, espe- cially if the boxes are not in the shade, the air inside becomes very hot and impure, and doubt- less the young must suffer considerably unless arrangements are made for a change of air. In constructing the houses of boards, a narrow slit may be left on each side under the roof. A series of small holes may be bored in the upper part of the hollow limbs or bark houses; nail- holes may be made in the tin receptacles. Drainage Holes. — It is also well to bore a few small holes somewhere in the bottom of the boxes to allow any water to drain out that may beat into the boxes during storms; and, of course, there should be no openings left on top by which the water can enter. Movable Covers. — It is very convenient to have some arrangement by which the houses can be opened for ex- amination if desired. This will allow opportunity for removing the eggs of the English spar- row, and for cleaning out the box at the end of the season. This may be arranged in sev- eral ways. The author has. BOX WITH SLmiNG COVEK. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Trafton, Gilbert H. (Gilbert Haven), 1874-. Boston New York, Houghton Mifflin Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1910
