Some Common Birds Useful to the Farmer (1926 edition)Beal, F. E. L. (Foster Ellenborough Lascelles)
Science
Some Common Birds Useful to the Farmer (1926 edition)
Beal, F. E. L. (Foster Ellenborough Lascelles)
Birds -- United States
In the other animal food of the crow are several items of the utmost
economic importance. Spiders are taken in considerable numbers in May and
June, but the yearly total is a little over 1 per cent of the food. In
early spring crawfish are eagerly sought, and other aquatic food, as fish
and mollusks, lend variety to the crow's bill of fare the year round.
In the consumption of toads, salamanders, frogs, and some snakes, which
together compose a little over 2 per cent of the yearly food, the crow is
doubtless doing harm. Small rodents occurred in the stomachs collected
nearly every month, but it Is often difficult to determine whether small
mammals found in birds' stomachs were taken alive or found dead.
From its carrion-eating habits the crow has been unfairly criticized as
a disseminator of live-stock diseases. While this may be to some extent
just, the fact that there are many other important carriers which lie
largely beyond our control, shows that we must seek final relief only
through the strictest methods of sanitation.
The nest-robbing habit of the crow, long a serious criticism, is verified
by stomach analysis. Of the 1,103 crows examined, 47 had fed on wild
birds or their eggs, and the eggs of domestic fowls were found somewhat
more frequently. The crow's habit of rummaging about garbage piles may
explain much of this latter material.
Of the vegetable food, corn, which is eaten every month, is the most
important item and forms about 38 per cent of the diet. Much of this,
however, must be considered waste, since over 60 per cent of it is
consumed from the first of November to the end of March. During the
periods when corn is sprouting and when in the "roasting-ear" stage the
crow is eating this grain at a rate considerably less than the yearly
average, and the months of smallest consumption are July and August. At
times, however, the damage to corn becomes a serious problem, and were
it not possible to make use of such deterrents as coal tar upon seed
corn there would be little friendship for the crow in some sections of
the East. The "pulling" of corn is a trait most prevalent in small-field
areas. Wheat and oats suffer similar damage at times, especially in the
Northwestern States, where these grains predominate. About the only
safeguard to ripening grain is the constant use of powder and shot or the
scarecrow.
Various kinds of cultivated fruits are also eaten, and local damage
to such crops as apples, melons, peas, beans, peanuts, and almonds is
occasionally reported. In long, rigorous winters, the crow, like other
birds, resorts to the fruit of numerous wild plants, as dogwood, sour
gum, hackberry, smilax, and the several species of sumac and poison ivy.
Public-domain text, read in full here on John Shaqi.
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