Snap a pic, and the (free) Merlin Bird Photo ID app will identify the bird. Once downloaded, it can go anywhere bird-watchers go, even places without cell service or Wi-Fi.
The hole is gigantic and facing Earth's way. Possible aurora sightings at the latitude of the northern U.S. – for example, in Michigan or Maine – on January 4 and 5.
The U.S. state of Nevada experienced several moderately strong earthquakes and multiple aftershocks, beginning just after midnight local time Wednesday morning.
Bird watchers, prepare to update your checklists. Ornithologists are pondering a new way of defining bird species. If the new thinking is accepted globally, the number of known bird species would double.