6 Miscellaneous Circular 18, U. S. Dept. of Agriculture. 
birds from injuring themselves by trying to force their way through 
the larger meshes. ‘O39 
The funnels are made next. Paper patterns are made first, as 
shown in Figures 4 and 5, by drawing the concentric circles and then 
laying off the straight lines, beginning with the longest. To draw 
large circles, lay the paper on the floor, drive a nail for a center, and 
attach a string to it; with this string and a pencil, circles of the 
desired radii may be easily drawn. 
The outlets from the funnels should be large enough to allow 
birds of the size of jays, thrashers, and robins to pass through. Sev- 
eral blunt wires (about the size of baling wire) are attached to the 
outlets so that they will project into the first and second chambers 
. 
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HIG. 5. 
Pattern for second funnel of trap shown in Figure 2 
3 inches and 2 inches, respectively. These may be fastened to the 
funnels by weaving them into the netting. The inner ends should 
then be soldered or merely bent back and pinched tight with the 
pliers. By adjusting these wires, birds of different sizes may be 
admitted or excluded as desired. Sharpening the wires is unneces- 
sary and would be liable to injure the birds. It is of great im- 
portance that the birds banded be released in as sound and healthy 
a condition as they were trapped. 
Figure 3 shows how all the parts of a trap may be cut from a 
piece of netting 4+ feet wide and 6 feet long. The wavy outlines 
in the patterns (figs. 4 and 5) indicate that the cut is to be half an 
inch outside of the straight lines, to allow extra wire for fasten- 
ing the funnels to the trap. The full lines in all figures pertain- 
