June 2021 – vol. 114, issue 6, pp 312–315 Record-breaking Cuckoo returns to SuffolkOne of the BTO’s satellite-tagged Common Cuckoos Cuculus canorus has returned to his Breckland breeding territory for his fifth successive summer. ‘PJ’ was fitted with his tag in June 2016 in King’s Forest, Suffolk, and has been providing researchers at the BTO with valuable data ever since. His arrival back in Suffolk sees him comple... This article is only available to subscribed users.To read more, please log in or purchase a subscription.