Identifier: birdsnature121902chic (find matches)
Title: Birds and nature
Year: 1900 (1900s)
Authors:
Subjects: Birds Natural history
Publisher: Chicago, Ill. : A.W. Mumford, Publisher
Contributing Library: Smithsonian Institution Libraries
Digitizing Sponsor: Biodiversity Heritage Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
their breeding grounds fur-ther north. Dr. Shuleldts captives didnot even pair and early in July he re-leased them. Their plumage seemed tobe at its best in the early part of May.Another authority, speaking of thisbirds habits in the mountain regions,says, During summer and autumn theGray-crowned Finch is common abovetimber line, where it breeds, ranginghigher than the titlark and being usuallyfound in the vicinity of snow fields andthe frozen lakes near the summit of therange. It is rather shy in such locali-ties, though exceedingly tame in winter.Its flight is in undulating lines, like thecrossbills. The only note I have heardit utter is a kind of churr, like the call of-the scarlet tanager. They stay abovetimber-line till the close of October orthe middle of November. They are per-petually roving from place to place feed-ing upon the seeds of weeds and grassesand are never at rest for a moment at atime, constantly whirling about in close,dense masses, like so many longspurs. v^-*^
Text Appearing After Image:
COPyRISHT laOS, BY A. W. MUMFORD, CHICAeo, GRAY-CROWNED LEUCOSTICTE. (JLeucosticte tephrocotis). Life-size. CORUNDUM AND SPINEL. 1 CORUNDUM. The mineral species Cornndum affordsa number of gems known by differentnames. These differences arise from thefact that the stones were used as gemsbefore their mineralogical identity wasdiscovered. Thus red Corundum isknown as the ruby and blue Corundumas the sapphire. When Corundum suit-able for gem purposes occurs of othercolors, such as green, yellow or violet,the gems are sometimes known as green,yellow or violet sapphires, respectively,or b)^ the name of another gem whichthey closely resemble in color, with theadjective Oriental prefixed. Such arethe gems known as Oriental topaz, Ori-ental emerald. Oriental aquamarine, Ori-ental hyacinth. Oriental amethyst andOriental chrysolite. Colorless Corun-dum is known as leucosapphire.While Corundum of all colors is used forgems, it is only that which is transpa-rent which can be so employed. This is

Note About Images