Rockhopper penguin the tip of South America and the Falkland Islands and is very sensitive to food web changes, there is little foreseeable opportunity for the penguins to recover. Rockhoppers are seen in the films, "The Pebble and the Penguin", "Happy Feet" and "Happy Feet 2", "Surf's Up" and "", and "The Wild". Rockhopper penguin The rockhopper penguins are three closely related taxa of crested penguins that have been traditionally treated as a single species and are sometimes split into three species. Not all experts agree on the classification of these penguins. Some consider all three as distinct species, some split the
Bird vocalization and prevent an energetically costly fight . In birds with song repertoires, individuals may share the same song type and use these song types for more complex communication. Some birds will respond to a shared song type with a song-type match (i.e. with the same song type). This may be an aggressive signal, however results are mixed. Birds may also interact using repertoire-matches, wherein a bird responds with a song type that is in its rival's repertoire but is not the song that it is currently singing. This may be a less aggressive act than song-type matching. Communication through bird