Farmer Duck by Martin Waddell, illustrated by Helen Oxenbury

From chapters.ca:
Farmer Duck isn't your average duck. This duck cooks and cleans, tends the fields, and cares for the other animals on the farm - all because the owner of the farm is too lazy to do these things himself. But when Farmer Duck finally collapses from exhaustion, the farmyard animals come to the rescue with a simple but heroic plan.