McKay personifies America as a woman who feeds him "bread and bitterness" and who sinks her "tiger's tooth" into his throat. By using the pronouns she and her to refer to America, McKay turns the concept of a country into a person who can cause the narrator harm even while he loves her. The effect of this personification turns the relationship between the narrator and his country into a more personal relationship, full of the conflicting emotions that come along with loving a person.
Umm wolf wolf or maybe a cow cow i
The kind of poem reading that the lines above represent is literal reading. There are no figures of speech here, such as metaphors, personifications, etc. which is why it's not a symbolic, figurative, or analytical reading. There is nothing to analyze here - the lines just tell the story of an eagle searching for its prey - it can't get any more literal than that.