Fruit abundance and trait matching determine diet type and body condition across frugivorous bird populations

– This study was funded by a Percy Sladen Memorial Fund Grant (Linnaean Society of London) awarded to JPGV. JPGV was supported by a Spanish ‘Ramon y Cajal' fellowship (RYC-2017-22095). JCI was supported by a GRUPIN grant from the Regional Government of Asturias (IDI/2018/000151). Funding