The Bird that Wouldn't Sing

In a lively aviary, Mr. Peak is hesitant to attend the zookeeper's ball due to personal insecurities. Doctor Sue arrives to babysit, and they discuss an injured bird that needs care. Efforts to encourage the bird to sing are initially unsuccessful. Mr. Peak eventually decides to attend the ball as himself, realizing the importance of being authentic. The nightingale's singing habits are discovered, bringing joy to the aviary.

What is the final decision made by Mr. Peak regarding the ball?

What does Doctor Sue suggest is the reason the Nightingale isn't singing?

What does Mr. Peak realize about the Nightingale's singing habits?