Natalie Clements / Field Grasshopper (Chorthippus brunneus) cleaning antennae whilst resting on plant stem, Cardiff, Wales, UK, August.
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Natalie Clements / Tawny Owl (Strix Aluco) female wiping beak on branch whilst perching in tree, Cardiff, Wales, UK, April.
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Brian Bevan / Little owl (Athene noctua) perching and wiping beak on stump, Bedfordshire, UK, June.
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Tim Laman / Rhinoceros hornbill (Buceros rhinoceros) female scratching bill against tree branch, Halabala Wildlife Sanctuary, Narathiwat Province, Thailand.
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Doug Wechsler / Female Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) wiping ovipositor with hind legs after having parasitized larva of horntail wasp. Pennsylvania, USA. September.