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Most of the bugs and worms, too, have died or been eaten by the birds. The birds are the gardener's best friend, for they eat many worms and bugs that could not be killed in any other way. So the more insect-eating birds you have around your garden the better. Even though the robins may take a few cherries they don't get paid half enough that way for the good work they do."
The caterpillars do much damage among the vegetables, and many of the young tomatoes are riddled with holes. The few ears of wheat which have come up have tiny green caterpillars on them which eat up all the green corn. Having no insect-eating birds here is a great loss. We have been having a good deal of rain and close steamy weather.
Nothing shows the distinction better than convergent adaptation. Owls resemble birds of prey in bill and claw and mode of life, yet they are related to insect-eating swifts and goat-suckers and not to eagles and hawks. Swifts and swallows are similar in adaptive characters, but not in those which show relationship.
The insect-eating plants are also interesting examples in their way of the curious means which nature takes for keeping up the manure supply under trying circumstances. These uncanny things are all denizens of loose, peaty soil, where they can root themselves sufficiently for purposes of foothold and drink, but where the water rapidly washes away all animal matter.
If the wasps flew away, carrying the dead or sickly grubs with them, and dropped them on the ground round about their home, those banqueters would be, first and foremost, the insect-eating birds, the warblers, all of whom are lovers of small game. In this connection, we will allow ourselves a brief digression.
"But what of the insect eggs devoured by us in winter, when most of your pretty insect-eating birds have flown to where the insect is commoner, fatter, and fuller-flavoured? It is we stay-at-home British birds that really keep the insects down. I know that insect eggs do not appear in our poor dissected gizzards. How should they? How would you recognize their remains, O sapient sparrow-shooters?
I wonder if any of you can guess what that means." "It sounds," said Peter Rabbit, "as if it must have something to do with insects." "That is a very good guess, Peter," replied Old Mother Nature, smiling at him. "It does have to do with insects. The members of this order live very largely on insects and worms, and the name Insectivora means insect-eating.
In like manner a student of insect-eating plants tries to find their leaves in the making, in all the various stages which bridge their common forms with the shapes they assume when fully armed and busy. Availing himself of the relapses into old habits which plants occasionally exhibit under cultivation, Mr.
We have seen that one of the most common fireflies is diurnal in habits, or, at any rate, that it performs all the important business of its life by day, when it has neither bright colour nor light to warn its bird enemies; and out of every hundred species of insect-eating birds at least ninety-nine are diurnal.
Therefore, after declaring it to be illegal to kill any bird of either class between sunset and sunrise, the regulations went on to state that insect-eating birds shall not be killed in any place or in any manner, even in the daytime. Among other things this provision, by one stroke, completed the campaign which the Audubon Society had been waging for long years on behalf of the Robin.
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