This is the July calendar image from the Très Riches Heures du Duc de Berry. It shows wheat being harvested in a field to the left, a typical labor for July, while on the right a man and a woman are shearing sheep. The labors of the month are so very dependent on local seasons, and the cooperation of the weather, that it’s not really surprising to see sheep-sheering as a labor for June and July.
In the background is one of the Jean de Berry’s many castles; exactly which castle is in question (only three of his many castles are still extant). If you look very closely at the bottom left of the image, and in the river in front of the castle in the back ground, you can see swans. The swan is one of Jean de Berry’s heraldic devices (the bear is another; and his arms bear the royal fleur de lys).