Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_42 (mintage INTEGER, animal VARCHAR, year VARCHAR)
### Question:
How many Red Breasted Nuthatch coins created before 2007 were minted, on average?
### Answer:
SELECT AVG(mintage) FROM table_name_42 WHERE animal = "red breasted nuthatch" AND year < 2007