Jack Dykinga / Murmuration of Yellow-headed blackbirds (Xanthocephalus xanthocephalus) and Redwing blackbirds (Agelaius phoeniceus) at sunset, before roosting. Whitewater Draw Wildlife Area, Arizona, USA, December.
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John Waters / Large murmuration of Common starlings (Sturnus vulgaris) swirling over reedbed roost at sunset, Ham Wall RSPB Reserve, Somerset, England, UK, January.
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John Waters / Large flock of Common starlings (Sturnus vulgaris) swirling over reedbed roost at dusk, Ham Wall RSPB Reserve, Somerset, England, UK, November.
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John Waters / Large flock of Common starlings (Sturnus vulgaris) swirling over reedbed roost at dusk, Ham Wall RSPB Reserve, Somerset, England, UK, November.
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Five Films / Large flock of Common starlings (Sturnus vulgaris) flying at dusk, Somerset Levels, England, UK, November.
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Dave Bevan / Murmuration of Common starlings (Sturnus vulgaris) flying above pier, Aberystwyth, Ceredigion, Wales, UK, October.
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Dietmar Nill / Murmuration of Common starlings (Sturnus vulgaris) at dusk, Rome, Italy, December.
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David Williams/ BIA / Common Starling (Sturnus vulgaris) flock flying over lake, Wales, United Kingdom
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Peter Lewis / Starling (Sturnus vulgaris) coming into roost at sunset, Brighton, Sussex, England, UK, December.
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Peter Lewis / Starling (Sturnus vulgaris) murmuration at Studland, Dorset, England, UK, January.
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Peter Lewis / Starling (Sturnus vulgaris) murmuration at Studland, Dorset, England, UK, January.
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Peter Lewis / Starling (Sturnus vulgaris) murmuration at Studland, Dorset, England, UK, January.