Pelicans have a network of air sacs under their skin situated across the ventral surface including the throat, breast, and undersides of the wings, as well as having air sacs in their bones. The air sacs are connected to the airways of the respiratory system, and the pelican can keep its air sacs inflated by closing its glottis, but how air sacs are inflated is not clear.

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THREE PELICANS

• Category: Birds
• Photo by: Salamandra
• Add Date: 08.10.2023 23:09

Tags: THREE PELICANS animals birds pelicans white beaks wings