Dumbledore's Army
Thestrals are skeletal, winged horses, black in colour, which can only be seen by those who have witnessed death firsthand. They pull the Hogwarts school coaches and can also be tamed and ridden. This method of transportation was used in "Order of the Phoenix", when members of the Dumbledore's Army needed to go to the Ministry of Magic to rescue Sirius Black, and also used when transporting Harry from the Dursleys' house to The Burrow in "Deathly Hallows". Other magical birds have also been known to be flown; for instance Fawkes the phoenix by Harry, Ron, Ginny and Lockhart in "Chamber of Secrets" and Buckbeak the hippogriff by Harry, Hermione and Sirius in "Prisoner of Azkaban."