#10047 HANGING WREN HOUSE (7-1/2"h x 7-1/2"w x 7-1/2"d) Most birds prefer a stable nesting box attached to a tree or post. Wrens sometime prefer a hanging house, and this appealing little box suits them perfectly. Comes with a chain for hanging on a tree. As with all our nest boxes, teh design includes appropriate ventilation, drainage and opens for easy clean-out. As with all our nest boxes, the design includes appropriate ventilation, drainage and opens for easy clean-out. Sustainably grown 1" thick Eastern White Pine provides superior insullation. Hand crafted with pride in Maine.