Teacher's eyes twinkled. “I guess it won't do any harm to tell you that much,” said he. “No, it isn't in a tree. It is on the ground and, if I do say it, it is as well hidden a nest as anybody can build. Oh, Peter, watch your step! Watch your step!” Teacher fairly shrieked this warning.

Peter, who had just started to hop off to his right, stopped short in sheer astonishment. Just in front of him was a tiny mound of dead leaves, and a few feet beyond Mrs. Teacher was fluttering about on the ground as if badly hurt. Peter simply didn't know what to make of it. Once more he made a movement as if to hop. Teacher flew right down in front of him. “You'll step on my nest!” he cried.

Peter stared, for he didn't see any nest. He said as much.

“It's under that little mound of leaves right in front of your feet!” cried Teacher. “I wasn't going to tell you, but I just had to or you certainly would have stepped on it.”

Very carefully Peter walked around the little bunch of leaves and peered under them from the other side. There, sure enough, was a nest beneath them, and in it four speckled eggs. “I won't tell a soul, Teacher. I promise you I won't tell a soul,” declared Peter very earnestly. “I understand now why you are called Oven Bird, but I still like the name Teacher best.”

Feeling that Mr. and Mrs. Teacher would feel easier in their minds if he left them, Peter said good-by and started on for the lonesome place in the Green Forest where he knew the old nest of Redtail the Hawk had been. As he drew near the place he kept sharp watch through the treetops for a glimpse of Redtail. Presently he saw him high in the blue sky, sailing lazily in big circles. Then Peter became very, very cautious. He tiptoed forward, keeping under cover as much as possible. At last, peeping out from beneath a little hemlock-tree, he could see Redtail's old nest. He saw right away that it was bigger than it had been when he saw it last. Suddenly there was a chorus of hungry cries and Peter saw Mrs. Redtail approaching with a Mouse in her claws. From where he sat he could see four funny heads stretched above the edge of the nest.

“Redtail is using his old nest again and has got a family already,” exclaimed Peter. “I guess this is no place for me. The sooner I get away from here the better.”

Just then Redtail himself dropped down out of the blue, blue sky and alighted on a tree close at hand. Peter decided that the best thing he could do was to sit perfectly still where he was. He had a splendid view of Redtail, and he couldn't help but admire this big member of the Hawk family. The upper parts of his coat were a dark grayish-brown mixed with touches of chestnut color. The upper part of his breast was streaked with grayish-brown and buff, the lower part having but few streaks. Below this were black spots and bars ending in white. But it was the tail which Peter noticed most of all. It was a rich reddish-brown with a narrow black band near its end and a white tip. Peter understood at once why this big Hawk is called Redtail.

It was not until Mr. and Mrs. Redtail had gone in quest of more food for their hungry youngsters that Peter dared steal away. As soon as he felt it safe to do so, he headed for home as fast as he could go, lipperty-lipperty-lip. He knew that he wouldn't feel safe until that lonesome place in the Green Forest was far behind.

Yet if the truth be known, Peter had less cause to worry than would have been the case had it been some other member of the Hawk family instead of Redtail. And while Redtail and his wife do sometimes catch some of their feathered and furred neighbors, and once in a while a chicken, they do vastly more good than harm.