Our new paper explores changes in eggshell coloration in the Red-backed Shrike over the past 135 years. We documented a significant increase in the divergence of colour and pattern contrast both within and between clutches over time. These long-term changes may have enhanced the shrike’s defenses by improving the detection and rejection of cuckoo eggs, potentially contributing to the observed decline in brood parasitism rates in Red-backed Shrike nests. Agnieszka, Klaudia, Artur — it was a pleasure to work with you on this exciting project! ( https://academic.oup.com/auk/advance-article/doi/10.1093/ornithology/ukaf069/8362217 )
Coloration of Birds and other Creatures