Look before you dive

It was a hot, dry day, and the poor crow was longing for a drink. Wherever he looked he could see only dry, stony fields. He flew low over the ground, hoping to see at least a puddle where he could quench his thirst. He swooped over a little cottage! and caught sight of a blue lake - inside the cottage! Without thinking he dived straight into the inviting blue of the water - and hit the wall so hard that he bent his beak. What the crow had seen was only a painting on the wall. As he lay on the floor with stars flashing in his eyes, he felt a proper idiot!