Please answer the following question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Why are Big Bird's friends sad? Title: Sesame Street presents Follow That Bird Movie plot: The members of the Feathered Friends' Board of Birds (consisting of the Madame Chairbird, a sparrow, a turkey, a puffin, a robin, and an owl) discuss their situation about Big Bird and hope that they can find a bird family to put him with. The group's social worker Miss Finch (performed by Cheryl Wagner and voiced by Sally Kellerman) is sent to Sesame Street to find Big Bird a worthy bird family and bring him to the selected family. After leaving Sesame Street, New York City, New York, Miss Finch brings Big Bird to the fictional town of Oceanview, Illinois to live with a family of dodos. The dodos all think very poorly of non birds, even saying he should have a bird as a best friend instead of Mr. Snuffleupagus (who is currently watching over Big Bird's nest). This causes him much distress. When Big Bird runs away from his new home and ends up on the news, Miss Finch tells Kermit the Frog that she will reclaim him. His friends back on Sesame Street also see the news and band together to find him before Miss Finch does. In a Volkswagen Beetle is the group of Gordon, Olivia, Linda, and Cookie Monster. Count von Count departs in his Countmobile. Ernie and Bert go out to search in an airplane. Grover flies as Super Grover (later falling into the Volkswagen). Maria, much to her dismay, has to ride with Oscar the Grouch, Telly Monster, and Homer Honker in Oscar's Sloppy Jalopy. They all head out across America in search for their beloved Big Bird. Oscar, however, decides to go his own route wanting to have some fun, which greatly annoys Maria and Telly. Big Bird has various adventures in his attempt to get home. First, he hitches a ride with a turkey truck driver (Waylon Jennings) who tells him not to give up trying to get to his goal. He then meets two kids named Ruthie and Floyd (Alyson Court and Benjamin Barrett) at a farm and stays with them for a while. He ends up having to leave because of Miss Finch's arrival. While out imagining his friend Mr. Snuffleupagus in a cornfield, Big Bird is spotted by Ernie and...
Answer:
because Big Bird runs away from them