BIRDS OF PEASEMARSH 



houses to the trees. They may be nailed on a 

 board projecting above and below, and the 

 board nailed to the tree. Another way is to 

 put a strong hook in the tree and a ring on the 

 top of the bird house and simply hang it to the 

 hook. A small hook at the bottom will keep 

 the house from shaking. 



If the branch or tree trunk, to which the 

 house is attached, bends in the slightest the 

 house must be hung on the under side. By 

 observing the natural holes of the birds one 

 finds that they never slope upwards, as this 

 would let in the rain and sun. Some are on a 

 perpendicular trunk, but if it slopes they are 

 always on the under side. A house hung with 

 the opening facing upwards would probably 

 remain unoccupied. 



The particular places on the tree trunks 

 where the houses are to be hung should be 

 chosen while the foliage is on the trees, other- 

 wise when the leaves come out they may be too 

 shaded. Birds require an exposed, or partly 

 exposed tree trunk, where they have plenty of 

 sun and air. The hollow trees of their natural 

 homes are dead, or partly dead, and the foliage 

 never very thick. A post or pole near trees is 

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