NEST-PHOTOGRAPHY. 33 



Supplementary Legs. 



When the nest is eight to ten feet up it is almost 

 impossible to find at hand three suitable supple- 

 mentary legs some six to eight feet long. The 

 best and lightest form that these can take, when 

 specially provided, is that of bamboo poles, but as 

 a bundle of three, some eight feet long, is rather 

 an awkward object to carry about the country- 

 side, they may be jointed in the middle, but if 

 this joint be other than a very rigid one it will 

 defeat the whole purpose of the apparatus. There 

 are two suitable joints, the one requiring more 

 care at the time of making than the other, which 

 in turn requires more attention in fixing for use. 

 The former is a hinged joint as sketched, cut with 

 a fret-saw, and if carefully made is very firm, 



t L r 





JOINT re* JwTLDOTflRY LCG5 



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requiring only a few laps of string to fasten 

 it. Bamboo being hollow, affords the screws of 

 the hinge little hold, and it is well to pack the ends 

 with hard wood. The other way is simply to cut 

 the poles diagonally and to splice them together 

 with abundant wrappings of string, as in some 



