The main purpose of this circular is to direct the attention of cotton growers and others in the cotton growing states to the importance of birds in the boll weevil war, to emphasize the need of protection for them, and to suggest means to increase the numbers and extend the range of certain of the more important kinds.
Investigations by the Biological Survey show that thirty-eight species of birds eat boll weevils. While some eat them only sparingly others eat them freely, and no fewer than forty-seven adult weevils have been found in the stomach of a single cliff swallow. Of the birds known at the present time to feed on the weevil, among the most important are the orioles, nighthawks, and, foremost of all, the swallows (including the purple martin).
Orioles. —Six kinds of orioles live in Texas, though but two inhabit the southern states generally. Orioles are among the few birds that evince a decided preference for weevils, and as they persistently hunt for the insects on the bolls, they fill a place occupied by no other birds. They are protected by law in nearly every state in the Union, but their bright plumage renders them among the most salable of birds for millinery purposes, and despite protective laws, considerable numbers are still killed for the hat trade. It is hardly necessary to point out that their importance as insect eaters everywhere demands their protection, but more especially in the cotton belt.
From the "American Natural History"
THE BALTIMORE ORIOLE
The Deadly Enemy of the Cotton-Boll Weevil
THE NIGHTHAWK
A Goatsucker, not a Song-bird; but it Feeds Exclusively Upon Insects
Nighthawk. —The nighthawk, or bull-bat, also renders important service in the destruction of weevils, and catches them on the wing in considerable numbers, especially during its migration. Unfortunately, the nighthawk is eaten for food in some sections of the South, and considerable numbers are shot for this purpose. The bird's value for food, however, is infinitesimal as compared with the service it renders the cotton grower and other agriculturists, and every effort should be made to spread broadcast a knowledge of its usefulness as a weevil destroyer, with a view to its complete protection.
Swallows. —Of all the birds now known to destroy weevils, swallows are the most important. Six species occur in Texas and the southern states. The martin, the barn swallow, the bank swallow, the roughwing, and the cliff swallow breed locally in Texas, and all of them, except the cliff swallow, breed in the other cotton states. The white-bellied, or tree swallow, nests only in the North, and by far the greater number of cliff swallows nest in the North and West.
As showing how a colony of martins thrives when provided with sufficient room to multiply, an experiment by Mr. J. Warren Jacobs, of Waynesburg, Pa., may be cited. The first year five pairs were induced to occupy the single box provided, and raised eleven young. The fourth year three large boxes, divided into ninety-nine rooms, contained fifty-three pairs, and they raised about 175 young. The colony was thus nearly three hundred strong at the close of the fourth season. The effect of this number of hungry martins on the insects infesting the neighborhood may be imagined.
From the standpoint of the farmer and the cotton grower, swallows are among the most useful birds. Especially designed by nature to capture insects in midair, their powers of flight and endurance are unexcelled, and in their own field they have no competitors. Their peculiar value to the cotton grower consists in the fact that, like the nighthawk, they capture boll weevils when flying over the fields, which no other birds do. Flycatchers snap up the weevils near trees and shrubbery. Wrens hunt them out when concealed under bark or rubbish. Blackbirds catch them on the ground, as do the killdeer, titlark, meadow lark, and others; while orioles hunt for them on the bolls. But it is the peculiar function of swallows to catch the weevils as they are making long flights, leaving the cotton fields in search of hiding places in which to winter or entering them to continue their work of devastation.
Means have been taken to inform residents of the northern states of the value of the swallow tribe to agriculturists generally, and particularly to cotton planters, in the belief that the number of swallows breeding in the North can be substantially increased. The cooperation of the northern states is important, since birds bred in the North migrate directly through the southern states in the fall on their way to the distant tropics, and also in the spring on their return.
Important as it is to increase the number of northern breeding swallows, it is still more important to increase the number nesting in the South and to induce the birds there to extend their range over as much of the cotton area as possible. Nesting birds spend much more time in the South than migrants, and during the weeks when the old birds are feeding young they are almost incessantly engaged in the pursuit of insects.
It is not, of course, claimed that birds alone can stay the ravages of the cotton boll weevil in Texas, but they materially aid in checking the advance of the pest into the other cotton states. Important auxiliaries, in destroying these insects, birds aid in reducing their numbers within safe limits, and once within safe limits in keeping them there. Hence it is for the interests of the cotton states that special efforts be made to protect and care for the weevil-eating species, and to increase their numbers in every way possible.—(End of the circular.)
| THE NIGHTHAWK A Goatsucker, not a Song-bird; but it Feeds Exclusively Upon Insects |
Condensed Notes On The Food Habits Of Certain North American Birds.
Millions of Americans and near-Americans, both old and young, now need to be shown the actual figures that represent the value of our birds as destroyers of the insects, weeds and the small rodents that are swarming to overrun and devour our fields, orchards and forests. Will our people never learn that in fighting pests the birds are worth ten times more to men than all the poisons, sprays and traps that ever were invented or used?
We cannot spray our forests; and if the wild birds do not protect, them from insects, nothing will! If you will watch a warbler collecting the insects out of the top of a seventy-foot forest oak, busy as a bee hour after hour, it will convince you that the birds do for the forests that which man with all his resources cannot accomplish. You will then realize that to this country every woodpecker, chickadee, titmouse, creeper and warbler is easily worth its weight in gold. The killing of any member of those groups of birds should be punished by a fine of twenty-five dollars.
The Bob-White. —And take the Bob White Quail, for example, and the weeds of the farm. To kill weeds costs money—hard cash that the farmer earns by toil. Does the farmer put forth strenuous efforts to protect the bird of all birds that does most to help him keep down the weeds? Far from it! All that the average farmer thinks about the quail is of killing it, for a few ounces of meat on the table.
It is fairly beyond question that of all birds that influence the fortunes of the farmers and fruit-growers of North America, the common quail, or bob white, is one of the most valuable. It stays on the farm all the year round. When insects are most numerous and busy, Bob White devotes to them his entire time. He cheerfully fights them, from sixteen to eighteen hours per day. When the insects are gone, he turns his attention to the weeds that are striving to seed down the fields for another year. Occasionally he gets a few grains of wheat that have been left on the ground by the reapers; but he does no damage. In California, where the valley quail once were very numerous, they sometimes consumed altogether too much wheat for the good of the farmers; but outside of California I believe such occurrences are unknown.
Let us glance over the bob white's bill of fare: