Here are a few examples of hummingbird research. I will be happy to add links to additional online research resources as they are made known to me.
Prof. Don Powers has collected references for hummingbird scientific literature. Some papers are readable online in PDF format.
Rod Michael's Natural Instinct site is conducting a migration survey.
Hummingbird banding in East Alton, Illinois, 11/8/00
An Allen's Hummingbird arrived at my home on Thanksgiving 2009.
In July 2011 I banded a leucistic Ruby-throated Hummingbird in the Missouri Ozarks.
In August 2014 I banded an albino Ruby-throated Hummingbird in Fenton, MO.