. Birds in their relations to man; a manual of economic ornithology for the United States and Canada . stling from another they may 1(^ BIRDS IX THEIR RELATIONS TO MAN. b(^ marked either on llie leg or on the side of the bill with anitrate of silver pencil, which may be pnrcliased at any drugstore. There may be some difficulty in applyhig the pencil soas to make a good mark, owing to the oily skin of the birds,but see that it is wet and keep rubbing. The marks willneed to be renewed occasionally. The great value of this method is that it enables one toget photographs of the birds as they are b
. Birds in their relations to man; a manual of economic ornithology for the United States and Canada . stling from another they may 1(^ BIRDS IX THEIR RELATIONS TO MAN. b(^ marked either on llie leg or on the side of the bill with anitrate of silver pencil, which may be pnrcliased at any drugstore. There may be some difficulty in applyhig the pencil soas to make a good mark, owing to the oily skin of the birds,but see that it is wet and keep rubbing. The marks willneed to be renewed occasionally. The great value of this method is that it enables one toget photographs of the birds as they are being fed, beautifulexamples of which are shown in Professor Herricks are, however, elements of danger to the birds, whichshould by no means be overlooked. There is danger ofdesertion by the parents, of too much exposure to the hotrays of the sun, of lack of protection from the cold of nightor of the storm and stress of w^eather, as well as of variousliving enemies. No one should remove a nest from its originalsite who is not willing to take every ])ossible jirecaution toavoid a HEAD OF BROTTN THRASHER. CHAPTER TI. THE DEVELOPMENT OE ECnXOMH OHXTTIK )L( MIV. When Coliinibiis was niakiiiij; tliat cvciilliil voyage whichled to the discovery of the New World, lie was chec^red bythe sight of small birds that appeared beside his ship, tellinghim of his approach to land. And ever since then thesechildren of the air have been of interest to the white peoplewho have come to America, as they had been for untold agesbefore to the red men who roamed over the continent. Theearly New England settlers were troubled by some birdsagainst which they declared war, and cheered by others towhich tliey extended the offerings of friendship. And evenin those early days there were some men who found in thestudy of birds a source of delight to which they gladly gavetheir time. It is nearly two centuries since Mark Catesbywandered through the wilds of Florida and Carolina, seekingout
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1916
