Q. How can I estimate how many hummingbirds I feed each day?
A. Hummingbird experts Nancy Newfield and Bob and Martha Sargent came up with a formula whereby you count the number of hummingbirds you see at one time at your feeders and multiply this number by six to determine how many birds are visiting your feeders. They arrived at this number based on years of banding and color-marking hummingbirds at feeders.
Although this is not strict science, it's fun to do the calculations!
Reprinted from the Summer 2006 edition of WBU BIRDTracks®
Let me know how many you have calculated in your yard!