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Now, ninety multiplied by ninety four times over gives the number above stated. Of course, this makes no allowance for casualties which must be pretty frequent: but even so, the sum-total of aphides produced within a small garden in a single summer must be something very extraordinary. It is curious, too, that aphides on the whole seem to escape the notice of insect-eating birds very tolerably.
This new federal statute did not in itself change any of the existing game laws, but it gave authority to certain functionaries to make such regulations as they deemed wise, necessary, and proper to extend better protection to all migratory game and insect-eating birds in the United States.
With the disappearance of our birds generally, and especially the slaughter of song and other insect-eating birds both in the South and North, the destruction of the national wealth by insects forges to the front as a subject of vital importance. The logic of the situation is so simple a child can see it. Short crops mean higher prices.
In proportion as it presents a strikingly vivid or distinct appearance among the surrounding sand will it make itself a sure mark for its watchful foes, if it happen to be an unprotected skulker, or will it be seen beforehand and avoided by its prey, if it happen to be a predatory hunting or insect-eating beast. Hence on the sandy desert all species alike are uniformly sand-coloured.
During the months of continued dry, cold, easterly winds, which we have had to endure this season, all insect-eating birds have been almost as much starved as they are in winter when there is a deep snow. Nothing comes forth from the ground, nothing from the deep crannies which they cannot peck open; the larva remains quiescent in the solid timber. Not a speck can they find.
The mammals shrank into a meagre and insignificant population, a scattered tribe of small insect-eating animals, awaiting a fresh refrigeration of the globe.
"The disappearance of martins is a loss really of national importance," he began, in a sickly whine. "It is a shame to see how the pretty house martins are decreasing in this country at the hand of the sparrows," he continued. "He drives away our migratory and pre-eminently useful insect-eating birds, even turning out the eggs of the owners and using the locality for its own nest."
There are certain and constant characters in their formation, which bring them all under one group, called Insectivora, or Insect-eating Mammalia, by naturalists; but among them are smaller groups of individuals, with peculiar characters, adapted to their different habits.
Their enormous beaks are peculiarly adapted for searching in quest of eggs about the crevices of trees. The varieties here, include the Janeiro toucan, and the yellow-breasted toucan. The three next cases contain the many varieties of the Woodpecker. Woodpeckers are represented by naturalists as crows with a structure adapted to "an insect-eating life amidst growing timber."
"You mean better for yourself," said the sparrow, sharply. On reflection, I came to the conclusion that that was just what I did mean. "I don't believe an increase of insect-eating birds would do you much good," he went on. "Suppose, for instance, the ichneumon flies were decimated, what a time it would be for the caterpillars!
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