Northern mockingbirds are altricial, that means that, when hatched, They're born relatively immobile and defenseless and therefore call for nourishment for a specific duration from their parents. Scientific tests have shown the ability of some species to detect specific people and deal with them differently based upon uncovered risk assessments.[two] https://mockingbird95061.bloggerchest.com/37154302/helping-the-others-realize-the-advantages-of-mockingbird