. How to attract and protect wild birds . A. so 32 ISO eo 202 so 2T iSO 60 292 B. eo U6 230 70 we eo eo 300 70 490 D. eo 8S 27S TO ¥90 mm. Total HeightsoftheNestingboxes in iniUi-inetres. of the inside of the nesting-cavities at the various points as indicatedin the above diagram ;— Nesting-Boxes— Size A. Al. At A. 60-65 60-65 „ B. 70-80 70-80 C. D. B. 80-8585-95 .. C. 85-95 85-95 115-125 160-180 160-180These boxes are made of alder, birch, pine, and other woods whichdo not Sf)ht easily.* * Many boxes were made of bircliwood. Baron von Berlepsch has forbiddenthe use of this wood in future as i


. How to attract and protect wild birds . A. so 32 ISO eo 202 so 2T iSO 60 292 B. eo U6 230 70 we eo eo 300 70 490 D. eo 8S 27S TO ¥90 mm. Total HeightsoftheNestingboxes in iniUi-inetres. of the inside of the nesting-cavities at the various points as indicatedin the above diagram ;— Nesting-Boxes— Size A. Al. At A. 60-65 60-65 „ B. 70-80 70-80 C. D. B. 80-8585-95 .. C. 85-95 85-95 115-125 160-180 160-180These boxes are made of alder, birch, pine, and other woods whichdo not Sf)ht easily.* * Many boxes were made of bircliwood. Baron von Berlepsch has forbiddenthe use of this wood in future as it is not very durable. 37 The most important thing next to the characteristic slope of theopening at an angle of 4 degrees is undoubtedly the jDointed oval form ofthe trough. Strange to say, this most important circumstance isfrequently misunderstood. A mistake of this kind, such as speakingof a flat trough, can only be the result of insufficient acquaintancewith the Berlepsch nesting-boxes.* (See p. 32.~i ,a.


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Keywords: ., bookcentury1900, bookdecade1910, bookidcu319240, booksubjectbirds