THE BIRD STUDY BOOK 



prepared by Ned Dearborn, of the United States 

 Department of Agriculture, Washington, D. C. 



DIMENSIONS OF NESTING BOXES 



Species 



Floor 



of 

 cavity 



Depth 



of 

 cavity 



Entrance 

 above 

 floor 



Diameter 



of 

 entrance 



Height 

 above 

 ground 



Bluebird 



Robin 



Chickadee 



Tufted Titmouse . . 



White-breasted 

 Nuthatch 



House Wren 



Bewick Wren 



Carolina Wren .... 



Dipper 



Violet-green 

 Swallow 



Tree Swallow 



Barn Swallow 



Martin 



Song Sparrow 



House Finch 



Phoebe •,-•••,■ 



Crested Flycatcher . 



Flicker 



Red-headed Wood- 

 pecker 



Golden-fronted 

 Woodpecker .... 



Hairy Woodpecker 



Downy Woodpecker 



Screech Owl .... 



Sparrow Hawk . . 



Saw-whet Owl . . 



Barn Owl 



Wood Duck .... 



Inches 



5 by 5 



6 by 8 

 4 by 4 

 4 by 4 



4 by 4 

 4 by 4 

 4 by 4 

 4 by 4 

 6 by 6 



5 by 



5 by 



6 by 

 6 by 

 6 by 

 6 by 

 6 by 



6 by 



7 by 



6 by 6 



6 by 6 

 6 by 6 

 4 by 4 

 8 by 8 

 8 by 8 

 6 by 6 

 10 by 18 

 10 by 18 



Inches 



8 



8 



8 to 10 



8 to 10 



8 to 10 

 6 to 8 

 6 to 8 

 6 to 8 

 6 



6 

 6 

 6 

 6 

 6 

 6 

 6 

 8 to 10 

 16 to 18 



12 to 15 



12 to 15 

 12 to 15 

 8 to 10 

 12 to 15 

 12 to 15 

 10 to 12 

 15 to 18 

 10 to 15 



Inches 

 6 



1 to 

 lto 

 lto 



lto 6 

 lto 6 



8 

 16 



12 



12 



12 



8 



12 



12 



10 



4 



3 



Inches 

 li 



• 



li 

 li 



li 

 i 

 l 

 li 



3 



H 

 li 



• 



2J 



Feet 



5 to 10 



6 to 15 

 6 to 15 

 6 to 15 



12 to 20 

 6 to 10 

 6 to 10 

 6 to 10 

 lto 3 



10 to 15 

 10 to 15 

 8 to 12 

 15 to 20 

 lto 3 

 8 to 12 

 8 to 12 

 8 to 20 

 6 to 20 



12 to 20 



12 to 20 

 12 to 20 



6 to 20 

 10 to 30 

 10 to 30 

 12 to 20 

 12 to 18 



4 to 20 



•One or more sides open. 



tAll sides open. 



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