Figure 22.10 Edge habitat and nest parasitism. Bronzed cowbirds deposit their eggs in the nests of forest songbirds along the edges of habitat fragments, such as this nest of a Bewick’s wren in south Texas. The much larger cowbird chick receives a disproportionate amount of food from host parents and this causes a reduction in the number of host offspring that survive.

Photo by Rolf Nussbaumer/DanitaDelimont.com.