This book is a bird-watching memoir, or in other words a description of a person’s life watching birds in New York City’s Central Park. The memoirist is a Wall Street Journal Columnist named Marie Winn, and she describes interesting bird-watching episodes in Central Park with celebrities. She was particularly interested in the Red-Tail Hawks’ mating song, thus the title of the book.
This type of question is best answered by going to a web site that has reviews. enotes does not really have book reviews. You could have also made this a discussion post. That would give you a variety of opinions. However, you can also find the information you need with a simple search of a book-seller's web site, such as amazon.com . The link below will take you directly to this book. There are several reviews and a few other summaries there.