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APA Citation
Hayhow, D. B., Johnstone, I., Moore, A. S., Mucklow, C., Stratford, A., Šúr, M., & Eaton, M. A. (2018). breeding status of Red-billed Choughs Pyrrhocorax pyrrhocorax in the UK and Isle of Man in 2014. Bird study, 65(4), 458–470. http://access.bl.uk/ark:/81055/vdc_100077466077.0x000063