. Birds in their relations to man; a manual of economic ornithology for the United States and Canada . affairsthrough a small peep-hole, fill your note-book with an ac-count of the rations that are consumed. If on the ground thenest and young may be transferred to a sunken pail for betterobservation, as shown in the bobolink photographs usually happens, however, that the nest is not in a position 14 BIRDS IX THEIR RELATIOXS TO MAX. where a tent can be placed beside it. In that ease locate thetent in a good place as near by as may be, and then cut oflthe branch, fasten it strongly t
. Birds in their relations to man; a manual of economic ornithology for the United States and Canada . affairsthrough a small peep-hole, fill your note-book with an ac-count of the rations that are consumed. If on the ground thenest and young may be transferred to a sunken pail for betterobservation, as shown in the bobolink photographs usually happens, however, that the nest is not in a position 14 BIRDS IX THEIR RELATIOXS TO MAX. where a tent can be placed beside it. In that ease locate thetent in a good place as near by as may be, and then cut oflthe branch, fasten it strongly to a support by cords or screws,and by degrees move it to a place beside the tent. When it is not necessary to remove the nest, the tent maybe pitched as early as the day of hatching, in most cases atleast, without fear of causing the old birds to desert. But whenI lie nest has to be moved, unless the degrees of progress aremade very short, there is danger of desertion if the moving isundertaken before the young arc well covered with startingpinfeathers. Then they are able to move about and usually. OUTFIT FOR PHOTOGRAPHING BIRDS IN NEST. lo make sounds that attract the parent birds. At that timealso parental devotion is at its full strength, and the old birdsare willing lo face dangers that they would not otherwiseencounter. Where a nest is lo be moved and there is not much dangerof being bothered by prowling boys, we usually employ afairly good-sized lent, as it gives the observer a chance lochange his position without giving external evidence of it. 1 This method of controlling the nest ami using a lent lor concealmentwas lirsl described in The Home Lite of Wild Birds, by Professor Herrick, which see. METHODS OF STUDYING THE FOOD OF BIRDS. 15 It is set up early, so the birds may get accustomed to seeingit, and not taken down till the observation is several nests are brought one after another to thesame site. In the illustration opposite there is a chi
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirds, bookyear1903
