. Useful birds and their protection. Containing brief descriptions of the more common and useful species of Massachusetts, with accounts of their food habits, and a chapter on the means of attracting and protecting birds . obin. Two youngbirds from the nest wereselected for his soon died of starvation,as the supply of food giventhem at first was much toosmall. The food of the re-maining bird was graduallyincreased from day to day,until on the seventh day itwas given tliirty-one angleworms; but there was no increasein its weight until, on the fourteenth day, it received sixty-eig
. Useful birds and their protection. Containing brief descriptions of the more common and useful species of Massachusetts, with accounts of their food habits, and a chapter on the means of attracting and protecting birds . obin. Two youngbirds from the nest wereselected for his soon died of starvation,as the supply of food giventhem at first was much toosmall. The food of the re-maining bird was graduallyincreased from day to day,until on the seventh day itwas given tliirty-one angleworms; but there was no increasein its weight until, on the fourteenth day, it received sixty-eight worms, weighing, all told, thirty-four pennyweights.^ Later the same bird atenearly one-half its ownweight of beef in a young man eating atthis rate would consumeabout seventy pounds ofbeefsteak daily. TheEobin even when fullgrown required one-thirdof its weight of beefdaily. ^^•22- Mr. Charles W. Nash fed a young Eobin from fifty toseventy cutworms and earthworms a day for fifteen experimenting to see how many cutworms the birdwould eat in a day, he fed it five and one-half ounces of thisfood, or one hundred and sixty-five cutworms. As theEobin weighed but three ounces in the morning, it must. - Young Eoblns, in the nest. ■ The Food of Young Robins, by D. of Natural History, Vol. VI, pp. 396-399. Proceedings of tlie Boston VALUE OF BIRDS TO MAN. 45 have eaten, during, the day, a quantity one and five-sixthstimes its own weight.^ Three young Eobins, about ten days old, fed by theirparents, were watched by Weed and Dearborn. By an in-genious method of weighing and calculating, the observersarrived at the conclusion that apparently there was eaten adaily amount equal to more than half the birds own weight.^ Mr. Daniel E. Owen kept a young Hermit Thrush, whichate regularly half its weight of raw steak daily, and would,he says, probably have eaten as much more had it been fedoftener.^ In 1895 two young Crows were kept and fed by H
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1913
