I consider myself to have been the bridge between the shotgun and the binoculars in bird watching. Before I came along, the primary way to observe birds was to shoot them and stuff them.

The philosophy that I have worked under most of my life is that the serious study of natural history is an activity which has far-reaching effects in every aspect of a person's life. It ultimately makes people protective of the environment in a very committed way. It is my opinion that the study of natural history should be the primary avenue for creating environmentalists.

Butterflies may be better indicators of the health of our environment than birds.

The other creatures with which we share this world have their rights too, but not speaking our language, they have no voice, no vote; it is our moral duty to take care of them.

Birds have wings; they're free; they can fly where they want when they want. They have the kind of mobility many people envy.

Birds are an ecological litmus paper.

We don't have to go to wild places to find wildlife. A surprisingly wide range of species can be found in our sities and towns, from familiar animals like the raccoon to more exotic ones like the mountain lion.