From: Commonness and ecology, but not bigger brains, predict urban living in birds
 | Pairwise comparison |  |  |
---|---|---|---|
Reference level | Ground | Low | High |
Low | β = −0.20 ± 0.10 |  |  |
 | t = −1.99, P = 0.09 |  |  |
High | β = −0.37 ± 0.09 | β = −0.18 ± 0.09 |  |
 | t = −4.03, P = 0.0007 | t = −1.89, P = 0.09 |  |
Cavity | β = −0.36 ± 0.10 | β = −0.16 ± 0.09 | β = 0.01 ± 0.07 |
 | t = −3.85, P = 0.0007 | t = −1.80, P = 0.09 | t = 0.16, P = 0.87 |