It is reasonable that birds should be, and show themselves, more joyful than other creatures. For, as I have said, they are naturally better adapted for joy and happiness. In the first place, apparently, they are not subject to ennui. They change their position momentarily, and pass from country to country, however distant, and from the lowest regions of the air to the highest, quickly and with wonderful ease. Life to them is made up of an infinite variety of sights and experiences. Their bodies are in a continuous state of activity, and they themselves are full of vital power. All other animals, their wants being satisfied, love quietude and laziness; none, except fishes and certain flying insects, keep long in motion simply for amusement. The savage, for instance, except to supply his daily wants, which demand little and brief exertion, or when unable to hunt, scarcely stirs a step. He loves idleness and tranquillity above everything, and passes nearly the whole day sitting in silence and indolence within his rude cabin, or at its opening, or in some rocky cave or place of shelter. Birds, on the contrary, very rarely stay long in one place. They fly backwards and forwards without any necessity, simply as a pastime, and often having gone several hundred miles away from the country they usually frequent, they return thither the same evening. And even for the short time they are in one place, their bodies are never still. Ever turning here and there, they are always either flocking together, pecking, or shaking themselves, or hopping about in their extraordinarily vivacious and active maimer. In short, from the time a bird bursts its shell until it dies, save intervals of sleep, it is never still for a moment. From these considerations it may reasonably be affirmed that whereas the normal state of animals, including even man, is quietude, that of birds is motion.
We find also that birds are so endowed that their natural qualities harmonise with the exterior qualities and conditions of their life; this again makes them better adapted for happiness than other animals. They have remarkably acute powers of hearing, and a faculty of vision almost inconceivably perfect. Owing to this last they can discern simultaneously a vast extent of country, and are daily charmed by spectacles the most immense and varied. From these things it may be inferred that birds ought to possess an imagination, vivid and powerful in the highest degree,. Not the ardent and stormy imagination of Dante or Tasso; for this is a disastrous endowment, and the cause of endless anxieties and sufferings. But a fertile, light, and childish fancy, such as is productive of joyful thoughts, sweet unrealities, and manifold pleasures. This is the noblest gift of Nature to living creatures. And birds have this faculty in a great measure for their own delight and benefit, without experiencing any of its hurtful and painful consequences. For their prolific imagination, as with children, combines, with their bodily vigour, to render them happy and contented, instead of being injurious, and productive of misery, as with most men. Thus, birds may be said to resemble children equally in their vivacity and restlessness, and the other attributes of their nature. If the advantages of childhood were common to other ages, and its evils not exceeded later in life, man might perhaps be better able to bear patiently the burden of existence.
To me it seems that the nature of birds, considered aright, is manifestly more perfect than that of other animals. For, in the first place, birds are superior to other animals in sight and hearing, which are the principal senses of life. In the second place, birds naturally prefer motion to rest, whereas other creatures have the contrary preference. And since activity is a more living thing than repose, birds may be said to have more life than other animals. It follows therefore that birds are physically, and in the exercise of their faculties, superior to other creatures.
Now, if life be better than its contrary, the fuller and more perfect the life, as with birds, the greater is the superiority of creatures possessing it, over less endowed animals.
We must not forget also that birds are adapted to bear great atmospheric changes. Often they rise instantaneously from the ground far up into the air, where the cold is extreme; and others in their travels fly through many different climates.
In short, just as Anacreon wished to be changed into a mirror that he might be continually regarded by the mistress of his heart, or into a robe that he might cover her, or balm to anoint her, or water to wash her, or bands that she might draw him to her bosom, or a pearl to be worn on her neck, or shoes that she might at least press him with her feet; so I should like temporarily to be transformed into a bird, in order to experience their contentment and joyfulness of life.
[1] Compare Shakespeare's Henry IV., Part 2, Act 4, sc. 3. Falstaff: " ... nor a man cannot make him laugh;—but that's no marvel, he drinks no wine."