Peoria Audubon Society is a local affiliate of both:
National Audubon Society & Illinois Audubon Society
Photo Gallery: Page 2
In the image below Vern Kleen is taking a number of measurements to of the ruby-throated hummingbird before the banding. Note the hard copy of Aging and Sexing Hummingbirds used as a reference.
Vern Kleen holding hummingbird for banding
Vern Kleen examining hummingbird for banding records
Vern affixing band
Vern with banded hummingbird
More information on these remarkable creatures is at The Hummingbird Society.