The eagle suffers little birds to sing.
– William Shakespeare
The distribution of plants in a given locality is not more marked and defined than that of the birds. Show a botanist a landscape, and he will tell you where to look for the lady’s-slipper, the columbine, or the harebell. On the same principles, the ornithologist will direct you where to look for the greenlets, the wood-sparrow, or the chewink.
– John Burroughs
Indians walk softly and hurt the landscape hardly more than the birds and squirrels, and their brush and bark huts last hardly longer than those of wood rats, while their more enduring monuments, excepting those wrought on the forests by the fires they made to improve their hunting grounds, vanish in a few centuries.
– John Muir