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Keywords from Image Description:
Birdsofsouthafrilay a. Hirundo atrocaerulea Hirundo atrocaerulea Blue Swallow Hirundo atrocaerulea Hirundo atrocaerulea Hirondelle bleue org page Birds of South Africa creator John Gerrard Keulemans Birds of South Africa IX PDold Hirundo atrocaerulea John Gerrard Keulemans Birds of South Africa Sharpe