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APA Citation
Sparks, T., Atkinson, S., Lewthwaite, K., Dhap, R., Moran, N., & Tryjanowski, P. (2017). can bird abundance declines be detected by citizen science programmes? A case study using Common Cuckoo Cuculus canorus. Avian biology research, 10, 241–245. http://access.bl.uk/ark:/81055/vdc_100084366296.0x000012