This blog post is provided by Katrina Siddiqi-Davies and tells the #StoryBehindThePaper for the article, “Why don’t all birds lay early? Causes and consequences of breeding timing for a long-lived migratory seabird“. This study investigated why some birds consistently return to their breeding colonies and lay their eggs earlier than others, finding that individual differences in migration timing, breeding partners and seasonal food availability all … Continue reading Why don’t all birds lay early? What makes a Manx Shearwater early or late?