I read the Bible and know little of its history, but the human beings who wrote it were instruments of Divine Power, and Jesus forged a far stronger bond than the ten commandments: love. Birds and monkeys, or any of God's creatures, obey their instincts and merely do what they're programmed to do. In the case of the human being, things are more complicated because we know about love and its traps.
Wild beasts and birds are by right not the property merely of the people today, but the property of the unborn generations, whose belongings we have no right to squander.
Men have hitherto treated women like birds which have strayed down to them from the heights; as something more delicate, more fragile, more savage, stranger, sweeter, soulful--but as something which has to be caged up so that it shall not fly away.
The only clear thing is that we humans are the only species with the power to destroy the earth as we know it. The birds have no such power, nor do the insects, nor does any mammal. Yet if we have the capacity to destroy the earth, so, too, do we have the capacity to protect it.
When you have shot one bird flying you have shot all birds flying. They are all different and they fly in different ways but the sensation is the same and the last one is as good as the first.