. Bird lore . that can be taken are those of birds, since one can seldomcome within reach of them with a camera, and if one does come within range,then the light conditions are unfavorable for snapshots. If, in spite of all this, 344 Bird - Lore one desires to take bird pictures, some kind of a device must be used which willovercome the inherent shyness of these animals. The simplest place for takingbird pictures is at, or near, bird-baths or bird food-houses, where the shutter ofthe camera will be closed electrically by the bird itself. The necessary prelim-inary apparatus is simple and the r
. Bird lore . that can be taken are those of birds, since one can seldomcome within reach of them with a camera, and if one does come within range,then the light conditions are unfavorable for snapshots. If, in spite of all this, 344 Bird - Lore one desires to take bird pictures, some kind of a device must be used which willovercome the inherent shyness of these animals. The simplest place for takingbird pictures is at, or near, bird-baths or bird food-houses, where the shutter ofthe camera will be closed electrically by the bird itself. The necessary prelim-inary apparatus is simple and the results obtained are most satisfactory. I,at least, use no other method after having experimented with, and used, allkinds of devices for years, devices which were tried and approved by bothamateur and professional but which still gave unsatisfactory results. The most important contrivance necessary for the birds taking their ownpictures is a device which will close an electric circuit at the appropriate second. CATBIRD by the birds own weight. In order to get certain and easy results, the deviceis built in the form of a balance, one arm of which is kept in equilibrium so thatthe other, carrying the electric contacts, do not close the circuit unless thebird should spring on this arm, which will then sink and close the circuit. Thesame instant the core of an electro-magnet is charged, it pulls one arm of anangle iron downward while the other arm, pushing sideways, closes the shutterof the camera, thus securing a snapshot of the bird. The scale should not be too delicately built. For song-birds it should haveat least, a width of 4 inches. One arm of the scale is bent downward near theplace of attachment and a small box fastened to the extremity in which smallstones, etc., can be placed to counterbalance the other shorter arm to whicha twig or other suitable object is attached to facilitate the approach of the contact consists of V-shaped pieces of copper, one end of which
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, booksubjectorn
