Animal related
* A bird in the hand is worth two in the bush. See note 2
* A bird makes his nest little by little.
* A cat has nine lives.
* An elephant never forgets.
* An old fox need learn no craft.
* Birds of a feather flock together.
* Curiosity killed the cat; Satisfaction brought it back.
* Curses, like chickens come home to roost.
* Every dog has its day.
* His bark is louder than his bite.
* If you lie down with dogs, you'll get up with fleas.
* It's an ill bird that fouls its own nest.
* It's an old dog for a hard road.
* It's no use closing the stable door, after the horse has bolted.
* Kill two birds with the one stone.
* Let sleeping dogs lie.
* Like a fish out of water.
* Never look a gift horse in the mouth.
* Nothing falls into the mouth of a sleeping fox.
* Putting the cart before the horse.
* Sauce for the goose is sauce for the gander.
* The early bird catches the worm.
* The leopard does not change his spots.
* The sleepy fox catches no chickens.
* There's no use in flogging a dead horse.
* To scare a bird is not the way to catch it.
* What do you expect from a pig, but a grunt?
* When a fox hears a rabbit screaming it comes running, but not to help.
* While the cats away the mice play.
* You can lead a horse to water, but you can't make him drink.
* You can't make a silk purse out of a sow's ear.
NOTE. "A hair on the head is worth two in the brush".