In his new preface Bernd Heinrich ranges from Maine to Alaska and north to the Arctic as he summarizes findings from continuing investigations over the past twenty-five years--by him and others--into the wondrous "energy economy" of bumblebees.
This one-of-a-kind guide instructs readers in honing their nature observation skills, with a five-year journal format to create a long-term record of the patterns, highlights, and changes in their own backyards — from the date of the first frost to when summer fireflies appear.