ocr: cceams Learn that birds which scream actually sound quite different when you compare them. Axia allows you to identify the most subtle differences between things that seem to be similar until you really pay attention to them. This topic includes selected common gulls and howks. Compare two gulls in terms of their Songs and SongWaves: play one, then the other repeatedly and you can soon become a foster parent to a gull. Use Challenge Mode to accelerate your discrimination skills. Continue