A big calendar hung on the barn wall. Little Thunder stared at it.

"Market day is on Saturday," said Suzy. "Today is Monday. How many sleeps until market day?"

Little Thunder counted the boxes. "Tuesday, Wednesday, Thursday, Friday, Saturday. Five sleeps!"

"Correct," said Spike.

Then Suzy pointed at another date. "The chicks are due on the tenth."

"And the ducklings are due on the fifteenth," said Spike.

Little Thunder counted again. "The ducklings come five days after the chicks!"

Ottawa the cow peered at the calendar. "When are the lambs due?"

"At the start of next month," said Suzy. She turned the page. "The first!"

"And the calves?" asked Little Thunder.

"Near the end of the month," said Spike.

Little Thunder drew a big circle around market day. Then he drew a little chick, a duckling, a lamb and a calf on their dates.

"Now we'll never forget," he said.

He gave a big yawn. "Only five more sleeps. Better start now!"