Hummingbirds HD includes descriptions and images of all regularly occurring hummingbirds of North America plus rare visitors such as the Green Violet-ear and Violet-crowned Hummingbirds.
Information also covers hummingbird feeders and developing a hummingbird garden.
The "Where to See Hummingbirds" section includes information on seeing hummers in Costa Rica and Ecuador as well as over 100 images of almost 100 different species found in Mexico, Costa Rica and Ecuador.