David Tipling / Ring-necked parakeet (Psittacula krameri) feeding in Hawthorn, Richmond Park London, England, UK. October
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Juan Carlos Munoz / European mantis (Mantis religiosa) female on hawthorn, Cantabria, Spain.
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George Sanker / Black bear (Ursus americanus) in tree feeding on Hawthorn berries at sunrise. Grand Teton National Park, Wyoming, USA. October.
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Robert Thompson / Puss moth (Cerura vinula) camouflaged on small Hawthorn tree (Crataegus monogyna) Burren National Park, County Clare, Ireland, April.
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Ross Hoddinott / 2020VISION / Monochrome image of a Hawthorn tree (Crataegus monogyna) and granite outcrop near Saddle Tor, Dartmoor National Park, Devon, England, UK, January 2011.
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Nigel Cattlin / Hawthorn juniper rust (Gymnosporangium sp.) rust pustules, aecial horns and swellings on leaves and petioles and stems of hawthorn (Crataegus monogyna), Berkshire, UK. May.
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Nigel Cattlin / Hawthorn juniper rust (Gymnosporangium sp.) rust pustule swelling on the stem and spike of Hawthorn (Crataegus monogyna), Berkshire, UK. May.
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Nigel Cattlin / Hawthorn juniper rust (Gymnosporangium sp.) rust pustules lesion and aecial horns forming on upper leaf of Hawthorn (Crataegus monogyna), Berkshhire, UK. May.
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Nigel Cattlin / Hawthorn juniper rust (Gymnosporangium sp.) rust pustules, aecial horns and swellings on leaves, petioles and stems of Hawthorn (Crataegus monogyna), Berkshire, UK. May.
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Nigel Cattlin / Hawthorn juniper rust (Gymnosporangium sp.) rust pustules, aecial horns and swellings on flower and peduncle of Hawthorn (Crataegus monogyna), Berkshire, UK. May.
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Nigel Cattlin / Hawthorn juniper rust (Gymnosporangium sp.) rust pustules, aecial horns and swellings on leaves, petioles and stems of Hawthorn (Crataegus monogyna), Berkshire, UK. May.
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Ashley Cooper / Hawthorn trees (Crataegus sp.) in blossom on hillside, Bowland, North Yorkshire, UK. May.
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Ashley Cooper / Whinchat (Saxicola rubetra) male, perched in flowering Hawthorn (Crataegus sp.) bush, Geltsdale Nature Reserve, near Brampton, North Pennines, Cumbria, UK. June.
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Roger Powell / Flock of European goldfinches (Carduelis carduelis) flying to and perching on a bare hawthorn bush, Druridge Bay, Northumberland, England, UK, January.
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Brian Bevan / Bullfinch (Pyrrhula pyrrhula) female feeding in hawthorn bush then flies off, Northamptonshire, UK, April.
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Andres M. Dominguez / Crested tit (Lophophanes cristatus) Sierra de Grazalema Natural Park. Southern Spain. July