Rufous Hummingbird and Rocky Mountain Beeplant

Postcard US-2996988 to Florida was a maxi card of a Rufous hummingbird feeding on flowers of Rocky Mountain Beeplant on Seedskadee National Wildlife Refuge in western Sweetwater County, Wyoming. The stamp was a USPS 34-cent Hummingbird stamp with a first-day-of-issue postmark dated February 7, 2014 in Kansas City, Missouri. Photo from the USFWS Mountain Prairie collection by Tom Koerner/USFWS; used under Creative Commons Attribution 2.0.

Hummingbird in Costa Rica

Hummingbird by "Mike" Michael L. Baird, 2012

Postcard US-2738802 to India shows the Violet Sabrewing (Campylopterus hemileucurus), a large hummingbird native to southern Mexico and Central America that lives as far south as Costa Rica and western Panama.

The photographed was taken by "Mike" Michael L. Baird at Bosque de Paz, Rain Forest Lodge, Cloud Forest, Costa Rica on May 8, 2012, near the villages of Palmira and Pueblo Nuevo, and Bajos del Toro. The Volcan Poas National Park and the Juan Castro Blanco National Park were close by. Used under a Creative Common license.

Fun With Hummingbirds

Postcard US-2738805 to Ireland shows a Immature Anna's Hummingbird from a Flickr photo Fun With Hummingbirds Today by Linda Tanner under a Creative Common 2.0 license with attribution. The photo was taken on January 23, 2011.

It had a 34-cent Hummingbird stamp from USPS on the front, and was sent to Hummingbird Stamp
Cancellation Services, 8300 NE Underground Drive, Pillar 210, Kansas City, MO 64144-0001 for a first-day-of-issue postmark.