John Shaw / Great frigatebird (Fregata minor) male at nest site, with gular sac inflated to attract females. Genovesa Island, Galapagos, May.
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Tui De Roy / Great frigatebird (Fregata minor) male displaying inflated gular sac, Galapagos, Ecuador.
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Claudio Contreras / Great Frigatebird (Fregata minor) departing from nest, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Isl...
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Mary McDonald / Great frigatebird (Fregata minor) male, inflating red gular / throat pouch, Genovesa Island, Darwin Bay, Galapagos Islands. April.
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Mary McDonald / Great frigatebird (Fregata minor) male, inflating red gular throat pouch to attract a female, Genovesa Island, Darwin Bay, Galapagos Islands. April.
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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) males displaying, Galapagos, Ecuador.
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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.
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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) pair, male on left. Galapagos, Ecuador.
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Tui De Roy / Great frigatebird (Fregata minor) pair, male on left. Galapagos, Ecuador.
