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Tube-nosed Swimmers (Procellariiformes): Birds

Albatrosses (Diomedeidae)
Diving Petrels (Pelecanoididae)
Petrels and Shearwaters (Procellariidae)
Storm-Petrels (Hydrobatidae)

• Order Procellariiformes (University of Michigan) - Procellariidae (Shearwaters, Petrels), Hydrobatidae (Storm Petrels)
• Röhrennasen (Procellariiformes) - Systematik.
• Sturmvögel der Antarktis - Text und Abbildungen.
• Systematik der Röhrennasen