Birders

The birder guy I used to work with told me about birds doing most of their travel at night. Most birds can't forage for food at night, but if the moon is out they can navigate pretty well. So they do their heavy traveling by moonlight, land during the day and feed. Have heard the Canada geese on many a winter or late fall night, and seen them snoozing by the lakes during the day so I always thought of that as confirmation of bird migration techniques my colleague told me about decades ago.