Figure 1.
Effect of proportion of developed land on avian community structure.
Relationships of avian (A) abundance, (B) richness, and (C) diversity are characterized for winter (closed circles), spring (closed triangles), summer (open circles), and fall (open triangles). Best-fit lines are indicated for each season and are based on parameter estimates from the most-supported models of each response variable (see Table 1).
Figure 2.
Effect of distance to vegetated lots on avian community structure.
Relationships of avian (A) abundance, (B) richness, and (C) diversity are characterized for winter (closed circles), spring (closed triangles), summer (open circles), and fall (open triangles). Best-fit lines are indicated for each season and are based on parameter estimates from the most-supported models of each response variable (see Table 1).
Table 1.
Most-supported models of avian abundance, richness, and diversity at 20 buildings in 2010 in Illinois, USA.
Table 2.
List of carcass species (N = 16) collected at 20 study buildings for each season in 2010 in Illinois, USA.
Figure 3.
Factors driving bird-window collisions.
The most-supported model explaining mortality included the effects of (A) window area and (B) development (% impervious surfaces) (see Table 3).
Table 3.
Most-supported models of avian mortality resulting from window collisions at 20 buildings in Illinois, USA, 2010.
Figure 4.
Predicted annual fatalities for the study area in Illinois, USA.
Predicted fatalities were spatially interpolated from 1,956 model buildings using ordinary kriging.