Tui De Roy / Great frigatebird (Fregata minor) male displaying inflated gular sac, Galapagos, Ecuador.
01497305
Tui De Roy / Great frigatebird (Fregata minor) male displaying inflated gular sac, Galapagos, Ecuador.
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Tui De Roy / Great frigatebird (Fregata minor) male displaying inflated gular sac, Galapagos, Ecuador.
01497303
Tui De Roy / Great frigatebird (Fregata minor) pair, male on left. Galapagos, Ecuador.
01497302
Tui De Roy / Great frigatebird (Fregata minor) pair, male on left. Galapagos, Ecuador.
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Tui De Roy / Great frigatebird (Fregata minor) pair, male on left. Galapagos, Ecuador.
01497300
Tui De Roy / Great frigatebird (Fregata minor) male displaying inflated gular sac, Galapagos, Ecuador.
01497299
Tui De Roy / Great frigatebird (Fregata minor) male displaying inflated gular sac, Galapagos, Ecuador.
01495770
Franco Banfi / Great frigatebird (Frigata minor), male with inflated gular sac, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.
01570920
Sylvain Cordier / Great frigatebird (Fregata minor), courtship ritual, male inflating vocal sac to attract the females, Genovesa Island, Galapagos Island.
01571178
Sylvain Cordier / Great frigatebird (Fregata minor ridwayi), perched on bushes, Sand island, Midway Atoll National Wildlife Refuge, Hawaii
01566729
Claudio Contreras / Great Frigatebird (Fregata minor) chick, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific...
