...Their nests are placed onthe ground under bushes or fir trees and fromeight to fifteen eggs are laid... 
Chester A. Reed 「The Bird Book」
...Nest in a fir tree, 5 feet from theground; made of moss and strips of redwoodbark...
Chester A. Reed 「The Bird Book」
...Between elevations of 10,000 and 12,000 feet the silver fir is thecommonest tree...
Douglas Dewar 「Birds of the Indian Hills」
...Their food consists exclusivelyof pine, fir, and larch, which accounts for the fact that they are morenumerous in Northern latitudes where these trees abound...
Various 「Birds Illustrated by Color Photograph [April, 1897]」
...Their nests arebuilt among the branches of the fir trees, and there they disportthemselves gaily, climbing nimbly, and assisting their movements, asparrots do, with their beaks...
Various 「Birds Illustrated by Color Photograph [April, 1897]」
...One nowbefore me is placed among the terminal branches cut from thebough of a Scotch fir which grew at an elevation of about twentyfeet from the ground...
Rev. C. A. Johns 「British Birds in their Haunts」
...In the months of February, March and April, they do muchmischief to plantations by destroying the tender shoots of Scotchand Silver Fir...
Rev. C. A. Johns 「British Birds in their Haunts」
...Neverthelesssign found in the white fir forests in the Big Pines area indicatedthat flying squirrels may occur there...
Terry A. Vaughan 「Mammals of the San Gabriel Mountains of California」
...On these ridges, fir forest, often mixed with pine and oaks, isfound...
William E. Duellman 「The Amphibians and Reptiles of Michoacán, México」
...This species has been found only at elevations in excess of 2400 metersin pine and fir forests...
William E. Duellman 「The Amphibians and Reptiles of Michoacán, México」
...Individuals of this species frequently have been found beneath rocks andlogs in pine-oak, pine, or fir forests from elevations of 1550 to 1850meters...
William E. Duellman 「The Amphibians and Reptiles of Michoacán, México」
...Aname for a look-out on the México-Morelia highway in AtzimbaNational Park, about 32 kilometers by road west-southwest ofCiudad Hidalgo; pine and fir forest...
William E. Duellman 「The Amphibians and Reptiles of Michoacán, México」
...and pine and fir forest above 2500 m...
William E. Duellman 「The Amphibians and Reptiles of Michoacán, México」
...In large fir logs in advanced stages of decomposition,salamanders could be found to the very centers...
Richard F. Johnston 「Natural History of the Salamander, Aneides hardii」
...All egg clusters that wefound were in small chambers within decomposing fir logs...
Richard F. Johnston 「Natural History of the Salamander, Aneides hardii」
...An excellent mode of concealment is to cut several fir, pine or hemlock shrubs and stick them up, as if growing about the pen, which is most likely to attract the eye...
A. R. (Arthur Robert) Harding 「Mink Trapping」
...“I have got matches, sir, and Bob Bacon here, sir, has got a bit of old dead sort of fir wood as will burn well enough...
George Manville Fenn 「Dead Man's Land」
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