Final answer:
In Act 3 of 'The Crucible', Abigail Williams accuses Mary Warren's spirit of taking the shape of a bird to attack her and the other girls in court.
Step-by-step explanation:
In Act 3 of Arthur Miller's play The Crucible, Abigail Williams claims that Mary Warren's spirit was manifest as a bird. During the Salem witch trials, accusations such as these were common, allowing fear and superstition to override reason and justice. Abigail, in her attempt to manipulate the court, alleges that Mary is using her spirit to attack her and the other girls, thus perpetuating the hysteria surrounding witchcraft.