NESTING 



SITES ' 



EOR BIRDS. "^ 



The boxes at the top of 

 the page are on the same plan 

 as those which have been nsed 

 with great success in the Brent 

 N'alley Bird Sanctuar\-. but 

 some improvements ha\e been 

 made in the way in which the 

 hd opens and is fixed in place. 



The boxes seen in the middle of the 

 page are hollowed out from natural logs 

 of the Birch, the tops can be removed 

 so that they may be cleaned out or the 

 contents examined from time to time. 



The others shown at the bottom of 

 the page are also made from natural 

 logs, but in this case the centre is 

 removed from the side instead of from 

 the end. and after being hollowed out 

 a second and a third time the piece is 

 replaced once more in the log from 

 which it can be pulled out like a drawer. 



98 



