Grey crowned cranes are an African bird species that can live for up to 25 years. They have a “gular sac” which they use to make booming sounds. They usually mate for life, dancing to each other for courtship. They usually breed in wet periods, nesting near water. They are classified as Endangered due to the loss of wetland habitat and the increased use of pesticides that kill insects. Dogs sometimes kill them and they are persecuted by humans.
Photograph by Rod Waddington from Kergunyah, Australia (Crested Cranes, Uganda) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons