Nick Upton / Face fly / Autumn house fly (Musca autumnalis) dusted with pollen feeding on a Forsythia flower, Wiltshire garden, UK, March.
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Nick Upton / Pair of Face flies / Autumn house flies (Musca autumnalis) mating on a hedge leaf, Wiltshire, England, UK, April.
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Nick Upton / Wide anlge shot of male Face flies / Autumn house flies (Musca autumnalis) landing and jostling on honeysuckle leaves as they gather in a display lek, Wiltshire, England, UK, April.
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Nick Upton / Wide anlge shot of male Face flies / Autumn house flies (Musca autumnalis) landing and jostling on honeysuckle leaves as they gather in a display lek, Wiltshire, England, UK, April.
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Nick Upton / Wide anlge shot of male Face flies / Autumn house flies (Musca autumnalis) landing and jostling on honeysuckle leaves as they gather in a display lek, Wiltshire, England, UK, April.
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Nick Upton / Male Face flies / Autumn house flies (Musca autumnalis) landing and jostling on honeysuckle leaves as they gather in a display lek, Wiltshire, England, UK, April. Slow motion clip.
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Nick Upton / Male Face flies / Autumn house flies (Musca autumnalis) landing and jostling on honeysuckle leaves as they gather in a display lek, Wiltshire, England, UK, April. Slow motion clip.
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Nick Upton / Male Face flies / Autumn house flies (Musca autumnalis) landing and jostling on honeysuckle leaves as they gather in a display lek, Wiltshire, England, UK, April. Slow motion clip.
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Nick Upton / Male Face flies / Autumn house flies (Musca autumnalis) landing and jostling on honeysuckle leaves as they gather in a display lek, Wiltshire, England, UK, April. Slow motion clip.
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Nick Upton / Asturian pony / Asturcon (Equus caballus) with masses of Face flies / Autumn house flies (Musca autumnalis) on its head and around its eyes and nostrils, near Llanes, Asturias, Spain.
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Andy Sands / Face flies (Musca autumnalis) pair mating on leaf, Hertfordshire, England, UK. July. Focus stacked.
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Nick Upton / Face flies / Autumn house flies (Musca autumnalis) mating on a leaf in a garden, Wiltshire, UK, April.