This is an example of a metaphor, comparing Bob Ewell to a "bantam cock" to emphasize his small size, aggressiveness, and combative nature. It helps create a vivid image for the reader and conveys Lee's opinion of Ewell's character.
It seems you have omitted the lines you are referring to. Please provide the lines so I can identify the literary device being used.
The literary device you are referring to is called a motif. A motif is a recurring element that has symbolic significance and contributes to the overall theme of a literary work.
It is an idiom. It is referring to the large quantity of faces, not literally a sea of heads.
In order to identify the literary device used in a sentence, I would need to know the specific sentence you are referring to. Literary devices can include metaphors, similes, personification, imagery, alliteration, etc. Each device conveys meaning in a unique way.
Miss Maudie's response referring to mockingbirds in "To Kill a Mockingbird" utilizes the metaphorical literary device. By likening people who are defenseless and innocent to mockingbirds, the author conveys the idea that such individuals should be protected and not harmed.
The literary device you are referring to is "anachronism." An anachronism is something that is out of its proper time period or historical setting, often used to create a deliberate contrast or to highlight themes in a work.
Onomatopoeia is the name of the literary device in which sounds are written into words.
No
First-person narration is a literary device that deals with blatantly negative language.
The literary device that is used here is repetition.
Simile
literary device