Some Common Birds Useful to the Farmer (1915 edition)

Of the vegetable food, corn, which is eaten every month, is the most important item and forms about a third of the yearly diet. Much of this, however, must be considered waste....

In food habits the house wren is entirely beneficial. He may be said to live upon animal food alone, for an examination of 88 stomachs showed that 98 per cent of the contents wa...

The laboratory investigation of this bird’s food covered 312 stomachs, collected in every month and representing especially the fruit and grain sections of southern California....

Whether a bird is beneficial or injurious depends almost entirely upon what it eats. In the case of species which are very abundant, or which feed to some extent on the crops of...

In the Western States the Arkansas kingbird[52] is not so domestic in its habits as its eastern relative, preferring to live among scattering oaks on lonely hillsides, rather th...