The opposite of Potent is Feeble
No they are not dogs have more a vital extinct then chickens
Your question is bit unclear.
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.
