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#rook bird #corvid #black bird #bird nest #bird colony #corvidae

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#starling #bird nest #flock #large flock #roosting #bird colony

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#weaver bird #hanging nest #bird habitat #tree nest #bird colony

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#guillemot #murre #auk #cliff nesting #seabird egg #bird colony #pear-shaped egg

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#gannet #bird colony #nesting colony #seabird colony #cliff nesting #gannetry