Results of three ANOVAs testing the hypothesis that shrub nesting birds had a bias for a habitat type (Prediction 1), a bias for a substrate type given the availability of that substrate in the local nest environment (Prediction 2a), or a bias for a substrate type given the abundance of substrates

Included in the table are the response variables for each ANOVA and the parameters included in each model. Prediction 1 and 2a had only one parameter in the ANOVAs and Prediction 2b had two parameters and the interaction between those parameters (model fit: F = 7.3551, DF = 3, P = 0.0012). The factor “site” was not significant in any of the full models and was thus excluded.
Results of three ANOVAs testing the hypothesis that shrub nesting birds had a bias for a habitat type (Prediction 1), a bias for a substrate type given the availability of that substrate in the local nest environment (Prediction 2a), or a bias for a substrate type given the abundance of substrates per habitat type at each site (Prediction 2b).