10 



sparrow. He asserts that after a few have been caught in 

 such a box others will not go in, but native birds will use it. 

 There are successful devices for trapping sparrows also, which 

 are illustrated in Farmers' Bulletins 383 and 493. One of the 

 simplest of these is the wire funnel trap perfected by Dr. A. K. 

 Fisher of the Biological Survey. Fig. 3 shows the trap and 



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Fig. 3. — Funnel trap. Side raised to show interior. (After Biological Survey.) 



Fig. 4. — Outline of funnel trap. (After Biological Survey.) 



Figs. 4, 5 and 6 give details of construction. This trap is easy 

 to make and the cost of material is small. It has been tested 

 on the agricultural grounds at Washington and also in the 

 Missouri Botanical Gardens at St. Louis, and has caught 

 hundreds of sparrows in a few weeks. 



The following directions for making this trap are taken from 

 Farmers' Bulletin 493: — 



The essential parts of this trap are: (1) a half funnel leading into 

 (2) an antechamber, which ends in (3) a complete funnel leading into 

 (4) a final chamber. It is made of woven wire poultrj^ netting of three- 

 fourths inch mesh, and is re-enforced around the open end and along 



