The Problem with Chickens by Bruce Mcmillan, illustrated by Gunnella

From chapters.ca:
The ladies of Iceland have a problem: the birds lay their eggs in nooks on the sides of steep cliffs, so the ladies have a very difficult time getting any of the eggs for baking. They go to town to buy chickens to lay eggs for them instead. For a while, everyone is happy: there are plenty of eggs to bake plenty of yummy things. But the ladies' problems are far from solved, for the more time the chickens spend with the ladies, the more they begin to act like them too, until eventually they stop laying eggs all together. Now this is a problem indeed, but you can be sure, the clever ladies will find a solution.