Though the heron flied high the falcon kills it.
More Portuguese Proverbs:
From the sweetest wine, the tartest vinegar.Portuguese
Better an ass that carries me than a horse that throws me.
Portuguese
If you have a friend who is a doctor, then send him to your enemy's house.
Portuguese
The horse's best allowance is his master's eye.
Portuguese
Let not the bottom of your purse or of your mind be seen.
Portuguese
Where shall the ox go, and not have to plough?
Portuguese