Some Common Birds in Their Relation to AgricultureBeal, F. E. L. (Foster Ellenborough Lascelles)
Science
Some Common Birds in Their Relation to Agriculture
Beal, F. E. L. (Foster Ellenborough Lascelles)
Birds -- United States
The insects that constitute the great bulk of the food of this bird are
noxious species, largely beetles--May beetles, click beetles (the larvæ
of which are known as wire worms), weevils, which prey upon fruit and
grain, and a host of others. Wasps, wild bees, and ants are conspicuous
elements of the food, far outnumbering the hive bees. During summer
many grasshoppers and crickets, as well as leaf hoppers and other bugs,
are also eaten. Among the flies were a number of robber flies--insects
which prey largely upon other insects, especially honeybees, and which
have been known to commit in this way extensive depredations. It is thus
evident that the kingbird by destroying these flies actually does good
work for the apiarist. Nineteen robber flies were found in the stomachs
examined; these may be considered more than an equivalent for the four
worker honeybees already mentioned. A few caterpillars are eaten, mostly
belonging to the group commonly known as cutworms, all the species of
which are harmful. About 10 per cent of the food consists of small native
fruits, comprising some twenty common species of the roadsides and
thickets, such as dogwood berries, elder berries and wild grapes. The
bird has not been reported as eating cultivated fruit to an injurious
extent, and it is very doubtful if this is ever the case, for cherries
and blackberries are the only ones that might have come from cultivated
places, and they were found in but few stomachs.
Three points seem to be clearly established in regard to the food of the
kingbird--(1) that about 90 per cent consists of insects, mostly injurious
species; (2) that the alleged habit of preying upon honeybees is much less
prevalent than has been supposed, and probably does not result in any
great damage; and (3) that the vegetable food consists almost entirely of
wild fruits which have no economic value. These facts, taken in connection
with its well-known enmity for hawks and crows, entitle the kingbird to a
place among the most desirable birds of the orchard or garden.
THE PHŒBE.
(_Sayornis phœbe._)
Among the early spring arrivals at the North, none more welcome than the
phœbe (fig. 7). Though, naturally building its nest under an overhanging
cliff of rock or earth, or in the mouth of a cave, its preference for the
vicinity of farm buildings is so marked that in the more thickly settled
parts of the country the bird is seldom seen at any great distance from a
farmhouse except where a bridge spans some stream, affording a secure spot
for a nest. Its confiding disposition has rendered it a great favorite,
and consequently it is seldom disturbed. It breeds throughout the United
States east of the Great Plains, and winters from the South Atlantic and
Gulf States southward.
[Illustration: Fig. 7.--Phœbe.]
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