PLATE XLVII.-Bird Houses and Nesting Boxes. Fig. 1. hollow limb nest- 

 ing box ; Fig. 2 , birch bark bird house ; Fig. 8, slab bird box ; Fig. 4, cat-proof 

 I Fig. o, a use for an old funnel; Fig. 6, chestmit-bark nesting box Fi^s 7 

 and 1), boxes with slide fronts; Fig. 8. house for Tree Swallow. 



