Table 3. Coefficients (Mean, SD, and 2.5th and 97.5th percentiles) of the variables included in the models of the probability of detecting the Grey Fantail on a visit to a site, as a function of traffic noise (Models 1 and 3) and traffic volume (Model 2), with the deviance information criterion (DIC) and receiveroperating characteristic curve (AUC) values for models 1 and 2. Models 1 and 2 include data from all 58 study sites, whereas Model 3 includes data from the 19 study sites in which traffic volume was < 200 vehicles/d.



Variable 
Mean 
SD 
2.5% 
97.5% 
DIC 
AUC 

Model 1 
Constant 
0.971 
0.536 
2.29 
0.209 
102.3 
0.72 

Traffic noise 
0.082 
0.038 
0.18 
0.026 


Model 2 
Constant 
0.952 
0.546 
2.30 
0.171 
106.1 
0.66 

Traffic volume 
1.050 
0.573 
2.40 
0.155 


Model 3 
Constant 
0.066 
0.472 
1.00 
0.846 



Traffic noise 
0.208 
0.082 
0.39 
0.068 




