You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
New_Haven,_Connecticut

Context:
In 1637 a small party of Puritans reconnoitered the New Haven harbor area and wintered over. In April 1638, the main party of five hundred Puritans who left the Massachusetts Bay Colony under the leadership of the Reverend John Davenport and the London merchant Theophilus Eaton sailed into the harbor. These settlers were hoping to establish a (in their mind) better theological community, with the government more closely linked to the church than the one they left in Massachusetts and sought to take advantage of the excellent port capabilities of the harbor. The Quinnipiacs, who were under attack by neighboring Pequots, sold their land to the settlers in return for protection.

Question:
The Quinnipiacs were under attack by what group?

Pequots