They recorded data and banded hatchlings. Many of the farm bluebirds wintered over, and the first bluebird egg is usually laid on the third week of April. From 2002 to 2019 over 1,500 birds have ...
Sometimes things did go wrong. In Alaska a scientist had just discovered that the spectacled eider ducks of the Arctic Circle wintered at a rent in the sea ice way out from shore. Thousands of ...