The Electric Current in Bird Photography 



91 



variety of birds. Shrikes, Sparrow Hawks, Cowbirds, Bluebirds, Crackles, 

 Grosbeaks, and many others, have perched in this tree, but thus far have 

 been out of reach of a camera. This place has just been arranged, and no 

 pictures have yet been taken. 



The tree itself is not visible from the window and, to overcome this diffi- 

 culty, a large fine mirror has been set up in the pasture lot. The mirror is 

 set at the proper angle and, by focusing a telescope on the mirror, the top of 

 the oak is watched. I should add that all the stations are covered with tele- 

 scopes permanently mounted and focused on them. These telescopes are just 

 over the push-buttons in the window. Even those that are one hundred feet 

 away have telescopes, for at that distance it is necessary positively to 

 identify the birds, and to be sure of their exact position before touching 

 the button. 



FEMALE BOBOLINK 



RED-HEADED WOODPECKER 

 Taken with a $13 camera 



