What is a feature of birds that makes them valuable as biological indicators?
A)Many migrate long distances.
B)Many are brightly colored.
C)There are over 10,000 different species of birds.
D)Birdwatching is a popular hobby.

Question

Quizplus · Accepted Answer

Many bird species are migratory, which means they travel long distances across countries and continents. As they move through different environments, they can provide information about changes in habitat, climate, and land use along their route. This makes them valuable as biological indicators of environmental changes.

What Is a Feature of Birds That Makes Them Valuable