Does melanin-based plumage coloration reflect health status of free-living birds in urban environments? Hani Amir Aouissi, Mostefa Ababsa, Aissam Gaagai, Zihad Bouslama, Yassine Farhi, and Haroun Chenchouni Abstract Background: Ecological functions and processes in urban ecosystems are governed by various human activities. City-adapted and city-exploiting animal species are expected to present certain specific behavioral and physiological... Continue Reading →