SUMMARY I'm analyzing avian point count data using glmmTMB. I'm trying to estimate year-specific mean abundance for each species. Models with interactions of fixed terms are not working, I think bec...

Study design is an incomplete randomized block design. Fixed effects are maturity (covariate/continuous variable) and type (A, B, or C). There are 20 total samples with 7 of two types and 6 of one typ...