In the first movie, a figure is seen drinking its blood in the forbidden forest
Their blood when drunk will give the drinker immortality, although once its blood is drunk, the drinker is cursed.
Harry faces them in the 2nd task of the Tri-Wiz tournament, and they are known to sing beautifully
They have a great love of music. Their language is known as Mermish, and only a few Wizards know how to speak it
They are not very friendly with large claws, and are often mistaken for twigs
The Bowtruckle is immensely difficult to spot, being a hand-sized, insect eating, tree dweller with long sharp fingers (two on each hand), brown eyes, and a general appearance of a flat-faced little stickman made of bark and twigs, which serves well as camouflage in its natural habitat.
Hagrid has one as a pet. It attacks Malfoy in the during a Care of Magical Creatures lesson in his 3rd year
A Hippogriff is a magical creature that has the front legs, wings, and head of a giant eagle and the body, hind legs and tail of a horse. Hippogriffs have cruel, steel-coloured beaks and large, brilliantly orange eyes. The talons on their front legs are half a foot long and appear deadly.
You can only see them if you have witnessed death
A Thestral is a breed of winged horses with a skeletal body, face with reptilian features, and wide, leathery wings that resemble a bat's. They are very rare, and are considered dangerous by the Ministry of Magic. Thestrals are, undeservedly, known as omens of misfortune and aggression by many wizards because they are visible only to those who have witnessed death
Firenze, Bane, Ronan
A centaur is a magical creature whose head, torso and arms appear to be human joined to a horse's body. However, they are their own species, and are not any kind of half-breed. Despite being highly intelligent, centaurs are classified as Beasts by the Ministry of Magic,
The monster hidden in the Chamber of Secrets
The Basilisk is a giant serpent, also known as the King of Serpents. It is a creature bred by Dark Wizards. Herpo the Foul was the first to breed a Basilisk. He accomplished this by hatching a chicken egg beneath a toad.
What Seamus' boggart turns into
The Banshee is a Dark creature with the appearance of a woman with floor length black hair, and a skeletal green tinged face.The only known way to stop a banshee is to break its neck when it closes its eyes to scream, because every other part of its body is as tough as steel. A notable power of a banshee is a high-pitched supersonic scream that can kill anyone.
Welsh Green, Norweigan Ridgeback, Chinese Fireball, Hungarian Horntail
Dragons are giant winged, fire-breathing reptiles. Widely regarded as terrifying yet awe-inspiring, they can be found all over the world and are frequently referred to in Asian and medieval European folklore. Able to fly and breathe fire through their nostrils, they are one of the most dangerous and hardest to conceal creatures in the wizarding world.
Hagrids cross-bred invention studied in Harry's 4th year Care of Magical creatures class
The Blast-Ended Skrewt is a hybrid creature bred by Rubeus Hagrid by crossing Manticores and Fire crabs. Newly-hatched Skrewts looked like pale, slimy deformed shell-less lobsters. They had legs sticking out at odd angles. They were about six inches long and smelled strongly of rotten fish.
the species to which Aragog belongs
The Acromantula are a species of giant spider, native to the rainforests of Southeast Asia, particularly Borneo where it inhabits dense jungle. Acromantulas are believed to be a wizard-bred species, designed to guard dwellings or treasure hoards, and were first created before the Ban on Experimental Breeding in 1965.
They love shiny things. Lee Jordan levitates one into umbridges window when she is headmistress
A Niffler is a treasure-hunting creature with a long narrow snout. They are very attracted to shiny things, which makes them wonderful for locating anything metallic or shimmery, but they might bite if a person is wearing any jewellery.
Appears to be made of smoke. They lure unwary travellers into bogs and marshes
A Hinkypunk is a small, one-legged creature which appears as though it were made of wisps of smoke. It likes to lead travellers off the track at night and into bog. The Muggle word for them is the will-o'-the-wisp.
Japanese water demon found in Mongolia
The Kappa is a Japanese water demon. It resembles a scale-covered monkey with webbed hands and a water-filled depression on top of its head. The water in this hollow is the source of the creature's strength.
What was in a tank in Lupins office the first time Harry went to see him
A Grindylow is a small, horned water demon that lives in the weed beds at the bottom of lakes in Great Britain and Ireland. It has green teeth, pointy horns and long fingers, which are used to strangle their prey. They are violent and aggressive towards wizards and witches and Muggles, although merpeople have been known to domesticate them and keep them as pets.
They are very good at forging metal, e.g The Sword of Godric Gryffindor
Goblins are a highly intelligent race of small hominids with long fingers and feet that coexist with wizards. Their diet consists of meat, roots and fungi. Goblins converse in a language known as Gobbledegook, and are adept metalsmiths notable for their silverwork; they even mint coins for wizarding currency. Due to their skills with money and finances, they control the wizarding economy to a large extent and run Gringotts Wizarding Bank.
They love to work and are usually bound to serve one family (unless set free) e.g Winky
A house-elf is a magical creature which is devoted and loyal to the one designated as their master. They serve wizards and witches, and must do everything that their masters command unless they are freed. A house-elf can only be freed when his master gives him a piece of clothing such as a sock or hat.
Round 'balls of fluff' in shades of purple and pink. Ginny buys one and names it Arnold
A Pygmy Puff is a miniature Puffskein, bred in the back of Fred and George Weasley's shop Weasleys' Wizard Wheezes, and sold there as one of the known products in the WonderWitch range. It is one of their more popular products, as George said they were having trouble breeding them fast enough for the demand. Ginny Weasley bought a purple Pygmy Puff named Arnold
The Lovegoods strongly believe they exist. A mischeivous creature that apparently infests mistletoe
The Nargle is a creature that Luna Lovegood and Xenophilius Lovegood believe exists, though not many others do. The Nargle is known to infest mistletoe and to be a mischievous thief. Luna Lovegood claims that her Butterbeer cork necklace and her radish earrings keeps the Nargles away.
A bird that is reborn from its own ashes after bursting into flames to die
A swan-sized bird with red and gold plumage. Its scarlet feathers glow faintly in darkness, while its golden tail feathers are hot to the touch. Phoenixes are known for nesting on mountain peaks. They are gentle herbivores and are not known for fighting, when it is time to die, they burst into flame and are re-born from the ashes. Hence, phoenixes are immortal.