plication is not enough it may be repeated at intervals of a few 

 days. In wet weather, when fireworks can be used with 

 safety, small Roman candles are recommended as an effective 

 form of night bombardment. Sparrows do not appreciate fire- 

 works. If some of the sparrows are killed or captured when 

 they are disturbed this persecution will have a more permanent 

 effect. 



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



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



Trapping Sparrows. 



There are many contrivances for catching sparrows on the 

 nest, some of which are given in the bulletins of the Biological 

 Survey hereinbefore cited, but a deep hoop net on the end of a 

 pole may be used to catch them by placing it over the entrance 

 of the nesting box and driving the sparrow into 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 



