. The relation of birds to the cotton boll weevil . irnamental martin house. CULTURAL METHODS. 11 Where English sparrows are numerous they must be prevented. Fig. 2.—A simple martin house. from monopolizing the martin boxes. This may be accomplishedby shooting or poisoning the sparrows,by closing the entrances to the nestingboxes during the winter, or by taking theboxes down until the arrival of the mar-tins in spring. CULTURAL METHODS. Investigation of the habits of birds dur-ing the winter months has shown that cer-tain species, notably Brewer blackbirds,bronzed grackles, great-tailed grackl
. The relation of birds to the cotton boll weevil . irnamental martin house. CULTURAL METHODS. 11 Where English sparrows are numerous they must be prevented. Fig. 2.—A simple martin house. from monopolizing the martin boxes. This may be accomplishedby shooting or poisoning the sparrows,by closing the entrances to the nestingboxes during the winter, or by taking theboxes down until the arrival of the mar-tins in spring. CULTURAL METHODS. Investigation of the habits of birds dur-ing the winter months has shown that cer-tain species, notably Brewer blackbirds,bronzed grackles, great-tailed grackles, kill-deer, and upland plover, are quickly at-tracted to fields where plowing or harrow-ing is going on, and usually when thesebirds have been shot while following theplow, boll weevils have been found in theirstomachs. This is particularly true in fieldswhere the ground is being newly broken orthe old cotton stalks first broken down. Inview of the pronounced habit on thepart of many birds of feeding in culti-vated fields, the following suggestionsare believed to be worthy of adoption: 1. Break the ground as early in the win-ter as practicable, a
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Keywords: ., bookauthorhowe, bookcentury1900, bookdecade1900, booksubjectbirds
