Detective Conan: The Mystery of the Legendary Monster Bird (2011)

This story takes place 100 days before Kudo Shinichi became Edogawa Conan. Kudo Shinichi, a high school detective, arrives in Jugoya Town with Mori Ran and others. In this town a legend exists, claiming that a gigantic bull-headed shrike attacks the townspeople and kills them. The town was about to hold a festival in 3 days to put the giant bird's spirit to rest. While being led on a tour of the bull-headed shrike Shrine by Sonoko's parent's friend, Mr. Wakura, a crime related to the legend occurs. Starting with Kosaka, member of the Wakura family are slowly murdered in the same way...

Unfortunately the movie Detective Conan: The Mystery of the Legendary Monster Bird is not yet available on HBO Max.