“But what's it all about?” demanded Peter impatiently. “Do keep still long enough to tell me. Who is this contemptible creature?”

“Sally Sly,” snapped Jenny Wren. “Sally Sly the Cowbird. I hoped she wouldn't disgrace the Old Orchard this year, but she has. When Mr. and Mrs. Chebec returned from getting their breakfast this morning they found one of Sally Sly's eggs in their nest. They are terribly upset, and I don't blame them. If I were in their place I simply would throw that egg out. That's what I'd do, I'd throw that egg out!”

Peter was puzzled. He blinked his eyes and stroked his whiskers as he tried to understand what it all meant. “Who is Sally Sly, and what did she do that for?” he finally ventured.

“For goodness' sake, Peter Rabbit, do you mean to tell me you don't know who Sally Sly is?” Then without waiting for Peter to reply, Jenny rattled on. “She's a member of the Blackbird family and she's the laziest, most good-for-nothing, sneakiest, most unfeeling and most selfish wretch I know of!” Jenny paused long enough to get her breath. “She laid that egg in Chebec's nest because she is too lazy to build a nest of her own and too selfish to take care of her own children. Do you know what will happen, Peter Rabbit? Do you know what will happen?”

Peter shook his head and confessed that he didn't. “When that egg hatches out, that young Cowbird will be about twice as big as Chebec's own children,” sputtered Jenny. “He'll be so big that he'll get most of the food. He'll just rob those little Chebecs in spite of all their mother and father can do. And Chebec and his wife will be just soft-hearted enough to work themselves to skin and bone to feed the young wretch because he is an orphan and hasn't anybody to look after him. The worst of it is, Sally Sly is likely to play the same trick on others. She always chooses the nest of some one smaller than herself. She's terribly sly. No one has seen her about. She just sneaked into the Old Orchard this morning when everybody was busy, laid that egg and sneaked out again.”

“Did you say that she is a member of the Blackbird family?” asked Peter.

Jenny Wren nodded vigorously. “That's what she is,” said she. “Thank goodness, she isn't a member of MY family. If she were I never would be able to hold my head up. Just listen to Goldy the Oriole over in that big elm. I don't see how he can sing like that, knowing that one of his relatives has just done such a shameful deed. It's a queer thing that there can be two members of the same family so unlike. Mrs. Goldy builds one of the most wonderful nests of any one I know, and Sally Sly is too lazy to build any. If I were in Goldy's place I—”

“Hold on!” cried Peter. “I thought you said Sally Sly is a member of the Blackbird family. I don't see what she's got to do with Goldy the Oriole.”

“You don't, eh?” exclaimed Jenny. “Well, for one who pokes into other people's affairs as you do, you don't know much. The Orioles and the Meadow Larks and the Grackles and the Bobolinks all belong to the Blackbird family. They're all related to Redwing the Blackbird, and Sally Sly the Cowbird belongs in the same family.”

Peter gasped. “I—I—hadn't the least idea that any of these folks were related,” stammered Peter.