This spring, if you live in North America, put up a chickadee nest box  in your yard. If you are lucky, a pair of chickadees will move in and  raise a family. While they are feeding their young, watch what the  chickadees bring to the nest: mostly caterpillars. Both parents take  turns feeding the chicks, enabling them to bring a caterpillar to the  nest once every three minutes. And they do this from 6 a.m. until 8 p.m.  for each of the 16 to 18 days it takes the chicks to fledge. That's a  total of 350 to 570 caterpillars every day, depending on how many chicks  they have. So, an incredible 6,000 to 9,000 caterpillars are required  to make one clutch of chickadees." Doug Tallamy 
 
Photo by Master Naturalist Deanna Frautschi
      
    
        Photo by Master Naturalist Deanna Frautschi