Does red birds pecking at your window mean death?

My uncle's funeral is today, He became sick after a dental appointment. Last Thursday at 2:30 am he and his son saw a bluebird fluttering at the window and my uncle said that it was his brother telling him to join him. My cousin followed it where it sat on a stone outside. That night he died, however this was an unexpected death. They live in MN, bluebirds are very scarce, especially in October.