This left me wondering

According to my 'Old Farmer's Amanac' calendar, an average-size hummingbird has about 940 feathers. This statement has left me with more questions than answers.  First, who counted the hummingbird's feathers?  How did they get her to stand still long enough for the count?  How many hummingbirds did they count to get an average? How many feathers does an average-size robin have, or an eagle or a pigeon or a goose?  Do bigger birds have more feathers or just larger feathers? Has anyone ever made a quill pen out of a hummingbird feather? Who first decided that counting bird feathers would be an interesting thing to do? Do inquiring minds really want to know?