Possible Clues:

• Seemingly endless English learnt abroad
• Adjective for Rome
• Sea creature heading off to eat seabird at all times
• … and others describing source of riches that is forbidden for ever
• Endless dinner - no starter - included bird
• Not ending
• Bird diving into each lake and never stopping
• Lasting forever, tediously persistent
• Vocal group that once included Louise
• Long-lived oriental bird - a pound only