Which two times did the moving bird appear to Mattie in Fever 1793?

The
mockingbird appears to Mattie first on the morning of September 6, 1973, and then again two days
later in the afternoon. The first time is the morning of the day that her mother decides to send
her and her grandfather into the country to help try to protect them from the disease. Mattie
wakes that morning to mockingbird calls and to Eliza's hand on her shoulder; she feels anxious,
but she's glad that her mother is still alive.

The second time the
mockingbird appears is in the field when Mattie brings raspberries and water to her grandfather
because he is also sick (although not with yellow fever). The mockingbird calls right after she
finishes explaining her plans to him for how everything will be alright.