Ingo Arndt / White-necked jacobin (Florisuga mellivora) hummingbird, male, in flight. Costa Rica.
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Glenn Bartley/ BIA / Black Jacobin (Melanotrochilus fuscus) hummingbird feeding on flower nectar, Atlantic Rainforest, Brazil
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Five Films / Black jacobin humingbird (Florisuga fusca) feeding from a nectar feeder, Reserva Ecologica de Guapiacu, Rio de Janeiro, Brazil, 2015.
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Five Films / Black jacobin hummingbird (Florisuga fusca) hovering and feeding from a nectar feeder, Reserva Ecologica de Guapiacu, Rio de Janeiro, Brazil, 2015.
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Hanne & Jens Eriksen / Jacobin cuckoo (Clamator jacobinus) on twig, India, February.
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Hermann Brehm / Jacobin Cuckoo (Clamator jacobinus) fledgling begging for food from Arrow-marked Babbler (Turdoides jardineii ) Kwara, Botswana June
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Hermann Brehm / Jacobin Cuckoo (Clamator jacobinus) fledgling begging for food from Arrow-marked Babbler (Turdoides jardineii ) Kwara, Botswana June
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Hermann Brehm / Jacobin Cuckoo (Clamator jacobinus) fledgling begging for food from Arrow-marked Babbler (Turdoides jardineii ) Kwara, Botswana June