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left open to be covered by the cloth curtain when necessary. This 

 leaves a tight wall, 3 feet lo inches high, extending from the bottom 

 of the opening down to the floor, which prevents the wind from blow- 

 ing directly on to the birds when they are on the floor. A door is 

 made in this part of the front wall for the attendant to pass through 

 when the curtain is open. A door 16 inches high and 18 inches 

 wide is arranged under one of the windows for the birds to pass 

 through to the yards in front. It is placed close down to the floor. 

 A similar door is in the center of the back wall to admit them to the 

 rear yard when that is used. 



A light frame, made of i x 3 inch pine strips and i x 6 inch cross 

 ties, is covered with 10 ounce white duck, and hinged at the top of 

 the front opening, which it covers when closed down. This curtain 

 is easily turned up into the room, where it is caught and held by 

 swinging hooks until it is released. 



The roost platform is made tight and extends along the whole 

 length of the room against the back wall. It is 4 feet 10 inches 

 wide and three feet above the floor, high enough so that a person 

 can get under it comfortably when necessary to catch or handle the 

 birds. There are three roosts framed together in two 10 feet sec- 

 tions. They are one foot above the platform and hinged to the back 

 wall so they may be turned up out of the way when the platform is- 

 being cleaned. The back roost is 12 inches from the wall, and the 

 spaces between the next two are 16 inches. They are made of 2 x 5 

 inch spruce stuff, placed on edge, with the corners rounded off. The 

 roosting closet is shut off from the rest of the room by curtains, simi- 

 lar to the one described above. For convenience in handling, there 

 are two of them, each 10 feet long. They are three feet wide and 

 are hinged at the top so as to be turned out and hooked up. The 

 space above this curtain is ceiled up, and in it are two openings each 

 3 feet long and 6 inches wide, with slides for ventilating the closet 

 when necessary. There is a door in every partition, placed five inches 

 out from the edge of the roost platform. They are three feet wide 

 and seven feet high ; they are divided in the middle, lengthwise, and 

 each half is hung with double acting spring hinges, allowing them 

 to swing open both ways and close. 



Ten nests are placed against the partition in each end of the room 

 in two tiers. They are of ordinary form, each nesting space being 

 one foot wide, one foot high and two feet long, with the entrances 



