The Haunted Mansion Raven Shoulder Plush, which debuted at the D23: ... The cawing sound effect and light-up red eyes use 3 AG13 button cell batteries, which are included.

(SOUNDBITE OF RAVEN CAWING) CARPENTER: Back at the trailhead, Sebastianelli says it's like she's sending an audio postcard to future generations.

A raven is heard cawing at about 1:15 p.m. on March 4 near Jackie and Shadow’s nest in Big Bear, a video shows. This put Shadow on high alert.

A raven is heard cawing at about 1:15 p.m. on March 4 near Jackie and Shadow’s nest in Big Bear, a video shows. This put Shadow on high alert.

A raven is heard cawing at about 1:15 p.m. on March 4 near Jackie and Shadow’s nest in Big Bear, a video shows. This put Shadow on high alert.

A raven is heard cawing at about 1:15 p.m. on March 4 near Jackie and Shadow’s nest in Big Bear, a video shows. This put Shadow on high alert.

A raven is heard cawing at about 1:15 p.m. on March 4 near Jackie and Shadow’s nest in Big Bear, a video shows. This put Shadow on high alert.