A nest with a roof may provide some birds with more protection. But bird species that build simpler nests may be more adaptable to changing conditions.
A growing number of studies show that warming temperatures are increasing mortality. Researchers warn that heat stress could become a major factor in future extinctions.
A new book argues that if homeowners converted just half their land to native plantings, it would collectively create an area larger than all national parks in the lower 48 states combined.
