we up here on Crucher's Bench enjoy the coming of spring, including the arrival of our hummingbirds.  Many have feeders and plant attractive flowers.  here is some more information

Here is a nice link to Oregon's Department of Fish and Wildlife with pictures and sounds of our local hummingbirds

http://www.dfw.state.or.us/species/birds/hummingbirds.asp

and this new study

Hummingbird Study Reveals 22-Million-Year-Long History That Continues To Evolve And Produce New Species

By Kukil Bora

on April 04 2014 3:50 AM

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There are 338 recognized hummingbird species in the world, but that number could double over the next several million years, researchers said. Reuters

A new study has revealed that hummingbirds, the smallest on Earth, have a complicated history of evolution spread across millions of years and continue to evolve today, producing various diversified species.

As part of the study, researchers constructed a new family tree of the hummingbird, revealing that the tiny creature with the fastest heart on the planet originated in Eurasia about 42 million years ago before taking over South America 22 million years ago. The bird then spread rapidly across the South American continent, evolved to develop iridescent colors and subsequently moved northward to occupy North America and the Caribbean.

source:http://www.ibtimes.com/hummingbird-study-reveals-22-million-year-long-history-continues-evolve-produce-new-1567407