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.
A dog collar is a piece of material put around the neck of a dog. A collar may be used for control, identification, fashion, or other purposes. Identification tags and medical information are often placed on dog collars. Collars are also useful for controlling a dog manually, as they provide a handle for grabbing.
Pest collars can be more effective at combating ticks than fleas, because the collars rest around the dogâs neck. This means the insecticide is most effective in the neck and face area, which also happens to be where ticks gravitate. If ticks are more of a concern for you than fleas, collars might be a great option.