THE ENGLISH SPARROW AS A PEST. 



17 



Funnel trap. When extensive trapping is undertaken, the traps 

 employed must fulfill certain requirements in addition to ultimate 

 cllicicncv. Especially important are simple and prompt action, port- 

 ability, and cheapness, all of which are found in the funnel trap. 



FIG. 11. Funnel trap. (Side raised to show interior.) 



(Fig. 11.) Numerous experiments show that funnel traps usually 

 make a catch on the first day they are set. This trap has no loose 

 parts to become disarranged and requires no tools to keep it in order. 

 Although somewhat bulky, it weighs but little, and when painted 



FK;. 12. Outline of funnel trap. 



green or gray is inconspicuous. It is easy to construct, and the cost 

 of material is slight. The funnel trap has been tested on the Agri- 

 cultural Grounds in Washington with excellent results, and one sent 

 for trial to the Missouri Botanical Gardens at St. Louis during the 



493 



