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Bird- Lore 



The adjustment of the mirrors was a very delicate operation, and a 

 number of negatives were made that did not contain the reflected nest 

 because of a very slight error in directing the rays of light. 



Diagram showing the direction of the rays of light from the sun to the mirror on the ground; then to the • 

 mirror in the nest hole; then to the eggs, back to the mirror, and finally into the camera. 



There are an infinite number of cases where the mirror method may 

 be used with success. I have in my collection photographs of Cliff Swal- 

 lows, Chimney Swifts, Lark Sparrows, Louisiana Water Thrushes, Phcebes, 

 House Wrens, and several other birds made with the aid of these reflectors. 



BLUEBIRDS NEST AND EGGS. PHOTOGRAPHED BY REFLECTED LIGHT 



