Statistical analyses
To investigate whether infection status varied across nests we used a General Linear Model (GLM) with a binomial distribution within the R statistical software (RStudio Team; 2020). To investigate hatching success (hereafter hatchability) according to fusariosis symptom status, we performed a Generalized Linear Mixed Model (GLMM) with a binomial distribution using the R package “lme4” (Bates et al., 2015). To control for pseudo-replication, we entered nest ID as a random factor.