. . . . . . . . . "List of Birds"@en . "There are many birds that appear throughout Happy Tree Friends, and they usually make only one appearance and a minor one at that. However, some play a pivotal role in the episode in which they appear in."@en . . . "List of birds"@en . "There are many birds that appear throughout Happy Tree Friends, and they usually make only one appearance and a minor one at that. However, some play a pivotal role in the episode in which they appear in."@en . . . . . . . . . . . . . . . . . . . . . . . .