. How to attract and protect wild birds . m -2 P, m o^ n1 rnP g u> CJ TtI o3 o ID 03 <4) n oS •8 O 1 I. |T| 0 ^ (» ^ 0 li ^^ n o. 34 The lower part of the breeding cavity itseK is enlarged bottle-shaped,and ends in a pointed oval trough at the bottom. The inner walls aresomewhat uneven, so that the birds can cling to them more easily-In the extreme point of the nest trough a little mould or fine shavingsthat have been chiselled off serve for the eggs to rest on. The walls of the cavities are in every instance so strong thatatmospheric changes have no effect on the interior. The Berlepsch
. How to attract and protect wild birds . m -2 P, m o^ n1 rnP g u> CJ TtI o3 o ID 03 <4) n oS •8 O 1 I. |T| 0 ^ (» ^ 0 li ^^ n o. 34 The lower part of the breeding cavity itseK is enlarged bottle-shaped,and ends in a pointed oval trough at the bottom. The inner walls aresomewhat uneven, so that the birds can cling to them more easily-In the extreme point of the nest trough a little mould or fine shavingsthat have been chiselled off serve for the eggs to rest on. The walls of the cavities are in every instance so strong thatatmospheric changes have no effect on the interior. The Berlepschnesting-boxes are exact reproductions of these woodpecker first they were made by hand, with special instruments. But thismethod of reproduction was so troublesome, and therefore so expensive,that the general pubhc derived little benefit from it. Matters werenot simphfied till an experienced and practical manufacturer becameinterested in reproducing the artificial woodpecker holes wholesale,and not tiU then could the problem of nesting-boxes be consideredsolved. Mr. Hermann Scheid, in Biiren (Westphalia), is the man whom
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Keywords: ., bookcentury1900, bookdecade1910, bookidcu319240, booksubjectbirds
