POULTRY LABORATORY GUIDE 7 



used in ' construction. They should have a 

 perfectly smooth upper surface. Why ? Meas- 

 ure the width of the dropping-board and deter- 

 mine the width per roost. For single roosts it 

 should be eighteen to twenty-two inches wide, 

 and for double roosts about three feet. 



Is the dropping-board movable or buUt per- 

 manently into the building ? What is the ad- 

 vantage of having it movable? 



Nests. — In deciding on the advantages and 

 disadvantages . of different kinds of nests there 

 are at least three things to be considered: 



1. They should be situated so that they are 

 more or less darkened. 



2. They should be so arranged that the eggs 

 can be easily collected, and so constructed that 

 they can be easily and thoroughly cleaned. 



3. They should be raised above the floor, thus 

 making all the room available for the birds. 



Note the size and kind of lumber used, shape 

 and size of nests, also method by which they are 

 attached to the wall or dropping-board. 



Enumerate the different kinds of nesting 

 material used. Which do you consider best, 

 and why ? 



Trap nests. — Make a study of the different 

 trap nests available, and after following out the 

 method of tripping and locking, decide which. 



