The groves and thickets are full of them and their music; so full, indeed, that sometimes every leaf seems to pulsate with a little piping voice in the general concert.
Nor are they confined to the fields, groves, and hedges of the quiet country.

If the census of the sparrows alone in London could be taken, they would count up to a larger figure than all the birds of a New England county would reach.

Then there is another interesting feature of this companionship.

A great deal of it lasts through the entire year.

There are ten times as many birds in England as in America in the winter.