Christophe Courteau / African Paradise Flycatcher (Terpsiphone viridis) male sitting on nest on small branches in the shade. Okavango Delta, Botswana
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Andy Trowbridge / RF- Great Grey Owl (Strix nebulosa) adult and chicks on nest. Nest 'frame' is manmade. Ostersund, Sweden. June. (This image may be licensed either as rights managed or royalty free.)
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Andy Trowbridge / Great Grey Owl (Strix nebulosa) adult and chicks on nest. Nest 'frame' is manmade. Ostersund, Sweden. June.
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Andy Trowbridge / Great Grey Owl (Strix nebulosa) adult bringing food to chicks on nest. Nest 'frame' is manmade. Ostersund, Sweden. June.
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Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years feeding on termites from a nest he has broken open, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Centra...
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Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years feeding on termites from a nest he has broken open, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Centra...
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Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years trying to break into a termite nest, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Repub...
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Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years feeding on termites from a nest he has broken open, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Centra...
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Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years trying to break into a termite nest, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Repub...
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Kim Taylor / Wood Ant (Formica rufa) worker protecting the nest by jetting formic acid from its tail. Endemic to Europe and Asia. Surrey, UK.
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Yukihiro Fukuda / Male Japanese giant salamander (Andrias japonicus) protecting his eggs inside his nest, Japan, October
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Yukihiro Fukuda / Male Japanese giant salamander (Andrias japonicus) protecting his eggs inside his nest, Japan, September