The impact of introduced predators, light-induced mortality of fledglings and poaching on the dynamics of the Cory's shearwater (Calonectris diomedea) population from the Azores, northeastern subtropical Atlantic

► The Azores hold the world's largest Cory's shearwater (Calonectris diomedea) population. ► Population dynamics there remain unknown despite the existence of threats. ► Although we found a high adult survival rate, we cannot rule out a decline of the Azorean population. ► The causes of this potential decline are threats to the young on land and possible low juvenile survival at sea. ► We propose a set of measures aimed at reducing chick and fledgling mortality.