Blathers is a character from the Animal Crossing series of games.
His primary function is as the curator of the museum in the games, generally teaching the player about the items they donate, such as bugs, fish, fossils and paintings. He tends to sleep during the day, since he is an owl and that's what they do, although he still accepts donations and can be talked to.
Blathers does not like bugs at all, and oftens creeps out whenever the player donates one. He has a sister, Celeste, who runs the observatory in some of the Animal Crossing games. His name comes from the word, blather, which means to talk quickly without making a lot of sense. He is very smart and knows a lot about the subjects pertaining to what is donated.