MAINE AGRICULTURAL EXPERIMENT STATION. 9! 



Leghorns, Brahmas, Wyandottes, and Plymouth Rocks and a 

 number of other breeds. 



The amount of time required in caring for the trap nests can 

 only be estimated, since the attendant's time is divided with 

 other duties. The time varies from one day to another and 

 with the number of nests in use. By noting the total time used 

 each day in caring for the nests when the hens were laying most 

 heavily, it has been estimated that one active person devoting 

 his entire time to trap nests could take care of 400 to 500 nests 

 used by 2,000 to 2,500 hens. When commencing the year's work 

 he would need assistance in banding the birds, but after that 



FIG. 25. Trap nest closed. One side removed to show method of 

 operation. 



was done he could care for the nests without assistance until 

 midsummer, when the egg yield would probably be diminished 

 and a part of his time could be spared for other duties. 



THE VALUE, METHOD OF PRESERVATION, AND ECONOMICAL USE 

 OF HEN MANURE. 



One of the most valuable by-products of any live-stock 

 industry is the manure. Its proper care and use is one of the 

 distinguishing features of a successful stock farm. The high 

 nitrogen content of poultry droppings makes them in certain 



