22 CIRCULAR NO. 14 



coldest part of the year to hang a curtain to the rafter just in front 

 of the perches, and down to within about a foot of the floor. 



Material. 



The lumber used need not be of the best grade. Select com- 

 mon shiplap, or No. 2 rustic is good enough, providing the sides 

 and rear end are lined with good two-ply building paper or 

 tarred felt. This lining of paper would be necessary with the 

 best grade of lumber, because of the openipgs at the joints. 

 Where shingles are used a single layer of paper should be 

 placed between the shingles and the sheathing to keep out the 

 wind. The sheathing should be placed close together to make 

 the building warmer. A good grade of prepared roofing may 

 be used, and is a little cheaper than shingles, but not so dur- 

 able. 



Construction. 



See Fig. 3. Round off one side at each end of the skids 

 and drill a ^4 mcn hl e about six inches from the end to run 

 a clevis pin through to hitch a chain or spreader on when 

 moving the house. Cut one piece of 2x4x16 in the center and 

 nail these pieces firmly, one foot from the ends of the skids, 

 for the front and rear plate. On the under side of these at 

 each end nail firmly a short piece of 1x3 butting close up 

 against the skids to prevent them from pulling together. The 

 rest of the frame work is all 2x4 and should be well fitted and 

 securely nailed. The point of the rafter should not project be- 

 yond the outer edge of the wall plate. When the frame is 

 finished, tack the building paper onto the outside of the stud- 

 ding, then nail the siding on so as to hold the paper in place. 

 Where joints occur in the paper be sure that they overlap well, 

 then tack a thin board strip or cleat over this joint from the 

 inside of the house. This paper gives a smooth clean surface 

 to the inside and offers very little protection and few breeding 

 places for mites, and is the only sure way to prevent draughts. 

 The siding may be nailed on first and the paper put on the out- 

 side of this as shown in Fig. 4, but the former method is gen- 

 erally to be preferred. 



The opening for the door in the side may be cut out after 

 the siding is nailed on. Extreme care should be taken to fit 

 the door well in this opening, so that no cracks are left to 



