Instructions for Banding Birds. 7 
ing to this trap indicate where the netting is to be cut and the 
dotted lines where it is to be bent. The numbers at the angles in 
Figures 3, 4, and 5 correspond to those in Figure 2, which shows in 
outline the relation of the different parts as they appear when as- 
sembled. 
The funnels and the floor for the second chamber are securely 
laced in place with copper wire, the outlet from the first funnel 
being on the ground level, while that of the second is elevated 3 or 4 
inches. There is no floor in the first chamber, except in that part 
covered by the extensions from the funnel, which are intended pri- 
marily to give strength. Bait shows to better advantage on the bare 
ground, and it is frequently necessary to remove a bird from this 
chamber, a matter of considerable difficulty if netting covers the 
entire bottom. 
The door is readily made, by attaching a piece of netting to a wire 
frame. It should be hinged at the bottom so as to drop against the 
Bi838M 
Fic. 6.—House trap. An excellent trap for the permanent station. (Photograph by S. 
Prentiss Baldwin.) 
floor of the trap, and the wire forming the bottom, or axle, should 
project an inch or two beyond the side. This is then given two 
right-angle bends to form a crank by means of which the door is 
lowered when a bird is to be transferred to the gathering cage. The 
door should be about 64 inches square. 
See that all projecting wires in the netting are bent down smoothly. 
Greater strength may be gained by bending these around the frame- 
work at the sides and weaving them into the connecting pieces. 
This trap has the advantage of being always set, of being suitable 
for all small birds up to and including those of the size of robins and 
jays, of having no loose parts, and thus of requiring no tools to 
keep it inorder. It is not' heavy, and, when painted a leaf green, will 
be inconspicuous and not frighten the birds. 
