That is the prize that has been offered for a nesting pair of Passenger Pigeons. No one has claimed the money yet, and it would be a great adventure, don't you think, to seek that nest? If you find it, you must not disturb it, you know, or take the eggs or the young, or frighten the father- or mother-bird; for the people who offered all that money did not want dead birds to stuff for a museum, but hoped that someone might tell them where there were live wild ones nesting.

You see the news had got about that the dove that is called Passenger Pigeon was lost. No one could believe this at first, because there had been so very many—more than a thousand, more than a million, more than a billion. How could more than a billion doves be lost?

They were such big birds, too—a foot and a half long from tip of beak to tip of tail, and sometimes even longer. Why, that is longer than the tame pigeons that walk about our city streets. How could doves as large as that be lost, so that no one could find a pair, not even for one thousand dollars to pay him for the time it took to hunt?

Their colors were so pretty—head and back a soft, soft blue; neck glistening with violet, red, and gold; underneath, a wonderful purple red fading into violet shades, and then into bluish white. Who would not like to seek, for the love of seeing so beautiful a bird, even though no one paid a reward in money?

Shall we go, then, to Kentucky? For 'twas there the man named Audubon once saw them come in flocks to roost at night. They kept coming from sunset till after midnight, and their numbers were so great that their wings, even while still a long way off, made a sound like a gale of wind; and when close to, the noise of the birds was so loud that men could not hear one another speak, even though they stood near and shouted. The place where Audubon saw these pigeons was in a forest near the Green River; and there were so many that they filled the trees over a space forty miles long and more than three miles wide. They perched so thickly that the branches of the great trees broke under their weight, and went crashing to the ground; and their roosting-place looked as if a tornado had rushed through the forest.

Must there not be wild pigeons, yet, roosting in Kentucky—some small flock, perhaps, descended from the countless thousands seen by Audubon? No, not one of all these doves is left, they tell us, in the woods in that part of the country. The rush of their wings has been stilled and their evening uproar has been silenced. Men may now walk beside the Green River, and hear each other though they speak in whispers.

Would you like to seek the dove in Michigan in May? For there it was, and then it was, that these wild pigeons nested, so we are told by people who saw them, by hundreds of thousands, or even millions. They built in trees of every sort, and sometimes as many as one hundred nests were made in a single tree. Almost every tree on one hundred thousand acres would have at least one nest. The lowest ones were so near the ground that a man could reach them with his hand.

Suppose you should find, next May, just one pair nesting. Sire Dove, we think from what we have read, would help bring some twigs, and Dame Dove would lay them together in a criss-cross way, so that they would make a floor of sticks, sagging just a little in the middle. As soon as the floor of twigs was firm enough, so that an egg would not drop through, Dame Dove would put one in the shallow sagging place in the middle. It would be a white egg, very much like those our tame pigeons lay; and, because there would be no thick soft warm rug of dried grass on the floor, you could probably see it right through the nest, if you should stand underneath and look up. But you couldn't see it long, because, almost as soon as it was laid, Dame Dove would tuck the feather comforter she carried on her breast so cosily about that precious egg, that it would need no other padding to keep it warm. She would stay there, the faithful mother, from about two o'clock each afternoon until nine or ten o'clock the next morning. She would not leave for one minute, to eat or get a drink of water. Then, about nine or ten o'clock each morning, Sire Dove would slip onto the nest just as she moved off, and they would make the change so quickly that the egg could not even get cool. That one very dear egg would need two birds to take care of it, one always snuggling it close while the other ate and flew about and drank.

So they would sit, turn and turn about, for fourteen days. All this while they would be very gentle with each other, saying softly, "Coo-coo," something as tame pigeons do, only in shorter notes, or calling, "Kee-kee-kee." And sometimes Sire Dove would put his beak to that of his nesting mate and feed her, very likely, as later they would feed their young. For when the two weeks' brooding should be over, there would be a funny, homely, sprawling, soft and wobbly baby dove within the nest.

The father and mother of him would still have much to do, it seems; for hatching a dove out of an egg is only the easier half of the task. The wobbly baby must be brought up to become a dove of grace and beauty. That would take food.

But you must not think to see Sire and Dame Dove come flying home with seeds or nuts or fruit or grain or earthworms or insects in their beaks. What else, then, could they bring? Well, nothing at all, indeed, in their beaks; for the food of a baby dove requires especial preparation. It has to be provided for him in the crop of his parent. So Dame Dove would come with empty beak but full crop, and the baby would be fed. Just exactly how, I have not seen written by those people who saw a million Passenger Pigeons. Perhaps they did not stop to notice.

However, if you will watch a tame pigeon feed its young, you can guess how a wild one would do it. A tame mother-pigeon that I am acquainted with comes to her young (she has two) and, standing in or beside the nest, opens her beak very wide. One of her babies reaches up as far as he can stretch his neck and puts his beak inside his mother's mouth. He tucks it in at one side and crowds in his head as far as he can push it. Then the mother makes a sort of pumping motion, and pumps up soft baby food from her crop, and he swallows it. Sometimes he keeps his beak in his mother's mouth for as long as five minutes; and if anything startles her and she pulls away, the hungry little fellow scolds and whines and whimpers in a queer voice, and reaches out with his teasing wings, and flaps them against her breast, stretching up with his beak all the while and feeling for a chance to poke his head into her mouth again. And often, do you know, his twin sister gets her beak in one side of Mother Pigeon's mouth while he is feeding at the other side, and Mother just stands there and pumps and pumps. The two comical little birds, with feet braced and necks stretched up as far as they can reach, and their heads crowded as far in as they can push them, look so funny they would make you laugh to see them. Then, the next meal Father Pigeon feeds them the same way, usually one at a time, but often both together.

Now, I think, don't you, because that is the way tame Father and Mother Pigeon serve breakfast and dinner and supper and luncheons in between whiles to their tame twins, that wild Dame and Sire Dove would give food in very much the same way to their one wild baby? It might not be exactly the same, because tame pigeons and wild Passenger Pigeons are not the same kind of doves; but they are cousins of a sort, which means that they must have some of the same family habits.

If you should find a nest in Michigan in May, perhaps you can learn more about these matters, and watch to see whether, when the baby dove is all feathered out, Dame or Sire Dove pushes it out of the nest even before it can fly, though it is fat enough to be all right until it gets so hungry it learns to find food for itself. Perhaps you can watch, too, to see why Dame and Sire Dove seem to be in such a hurry to have their first baby taking care of himself. Is it because they are ready to build another nest right straight away, or would Dame Dove lay another egg in the same nest? Tame Mother Pigeon often lays two more eggs in the next nest-box even before her twins are out of their nest. Then you may be sure Father and Mother Pigeon have a busy time of it feeding their eldest twins, while they brood the two eggs in which their younger twins are growing.

It would be very pleasant if you could watch a pair of Passenger Pigeons and find out all these things about them. If you could! But I said only "perhaps," because the people who know most about the matter say that Michigan has lost more than a million, or possibly more than a billion, doves. They say that, if you should walk through all the woods in Michigan, you would not hear one single Passenger Pigeon call, "Kee-kee-kee" to his mate, or hear one pair talk softly together, saying, "Coo-coo." There are sticks and twigs enough for their nests lying about; but through all the lonesome woods, so we are told, there is not one Sire Dove left to bring them to his Dame; and never, never, never will there be another nest like the millions there used to be.

Well, then, if we cannot find them at sunset in their roosting-place in Kentucky or in their nests in Michigan in May, shall we give up the quest for the lost doves? Or shall we still keep hold of our courage and our hope and try elsewhere?

Surely, if there are any of these birds anywhere, they must eat food! Shall we seek them at some feeding-place? This might be everywhere in North America, from the Atlantic Ocean as far west as the Great Plains. That is, everywhere in all these miles where the things they liked to eat are growing. So, if you keep out of the Atlantic Ocean, and get someone to show you where the Great Plains are, you might look—almost anywhere. Why, many of you would not need to take a steam-train or even a trolley-car. You could walk there. Most of you could. You could walk to a place where they used to stop to feed. Those that were behind in the great flock flew over the heads of all the others, and so were in front for a while. In that way they all had a chance at a well-spread picnic ground. Yes, you could easily walk to a place where that used to happen—most of you could.

Do you know where acorns grow, or beechnuts, or chestnuts? Well, Passenger Pigeons used to come there to eat, for they were very fond of nuts! Do you know where elm trees grow wild along some riverway, or where pine trees live? Oh! that is where these birds used sometimes to get their breakfasts, when the trees had scattered their seeds. Do you know a tree that has a seed about the right size and shape for a knife at a doll's tea-party? Yes, that's the maple; and many and many a party the Passenger Pigeons used to have wherever they could find these cunning seed-knives. Only they didn't use them to cut things with. They ate them up as fast as ever they could.

Have you ever picked wild berries? Why, more than likely Passenger Pigeons have picked other berries there or thereabouts before your day!

Do you know a place where the wild rice grows? Ah, so did the Passenger Pigeons, once upon a time!

But if you know none of these places, even then you can stand near where the flocks used to fly when they were on their journeys. All of you who live between the Atlantic Ocean and the Great Plains can go to the door or a window of the house you live in and point to the sky and think: "Once so many Passenger Pigeons flew by that the sound of their wings was like the sound of thunder, and they went through the air faster than a train on a track, and the numbers in their flocks were so many that they hid the sun like great thick clouds."

When you do that, some of you will doubtless see birds flying over; but we fear that not even one of you will see even one Passenger Pigeon in its flight.

What happened to the countless millions is recorded in so many books that it need not be written again in this one. This story will tell you just one more thing about these strange and wonderful birds, and that is that no child who reads this story is in any way to blame because the dove is lost. What boy or girl is not glad to think, when some wrong has been done or some mistake has been made, "It's not my fault"?

Even though this bird is gone forever and forever and forever, there are many other kinds living among us. If old Mother Earth has been robbed of some of her children, she still has many more—many wonderful and beautiful living things. And that she may keep them safe, she needs your help; for boys and girls are her children, too, and the power lies in your strong hands and your courageous hearts and your wise brains to help save some of the most wonderful and fairest of other living things. And what one among you all, I wonder, will not be glad to think that you help keep the world beautiful, when you leave the water-lilies floating on the pond; that it is the same as if you sow the seeds in wild gardens, when you leave the cardinal flowers glowing on the banks and the fringed gentians lending their blue to the marshes. For the life of the world, whether it flies through the air or grows in the ground, is greatly in your care; and though you may never win a prize of money for finding the dove that other people lost, there is a reward of joy ready for anyone who can look at our good old Mother Earth and say, "It will not be my fault if, as the years go by, you lose your birds and flowers."

And it would be, don't you think, one of the greatest of adventures to seek and find and help keep safe such of these as are in danger, that they may not, like the dove, be lost?