Dawdle Duckling by Toni Bezzeo, illustrated by Margaret Spengler

From chapters.ca:
Dawdle Duckling won't follow dutifully behind Mama Duck like his three siblings do. He's too busy preening and playing, splashing and spinning, dunking and dipping ... and always, always dreaming. But he's in for a surprise: There's a crocodile waiting for a duckling lunch to swim by. When Mama quacks a warning, suddenly Dawdle Duckling isn't such a dawdler after all! A cheerful, reassuring tale of youthful rebellion and parental protection.