INTERIOR OF MULTIPLE UNIT HOUSE. 



This is one of our houses. The drinking fountains stand in the passageway and 

 their fronts project through the wire netting under the first row of nest boxes. The 

 nest boxes are empty egg crates. The feed troughs are inside of each pen. In 

 other houses, we set the feed troughs alongside the drinkers in the alleyway and 

 cut away the netting so the birds can feed from them. "We like the last arrange- 

 ment best because the troughs can be filled more quickly from the passageway, and 

 the time of opening and closing doors and going into pens is saved. 



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