Huge   Large   Medium   Other   Original 1. Allen's Hummingbird (Selasphorus sasin)

Huge   Very Large   Large   Medium   Other   Original 2. Rufous Hummingbird (Selasphorus rufus) Nestucca Bay National Wildlife Refuge, State of Oregon, USA

3. A Rufous Hummingbird (Selasphorus rufus) Gathers Nesting Material State of Oregon, USA

Huge   Large   Medium   Other   Original 4. Examining a Ruby-throated Hummingbird (Archilochus colubris) During a Study at Bon Secour National Wildlife Refuge, State of Alabama, USA

Large   Medium   Other   Original 5. Ruby-throated Hummingbird (Archilochus colubris)

1. First Row (Full size Original, Huge, Large, Medium, or Other): Lee Karney (WO-Lee Karney-2648), Washington DC Library, United States Fish and Wildlife Service Digital Library System (http://images.fws.gov), United States Fish and Wildlife Service (http://www.fws.gov), United States Department of the Interior (http://www.doi.gov), Government of the United States of America (USA).

2. Second Row (Full size Original, Huge, Very Large, Large, Medium, or Other): Peter Pearsall ("Item ID 128_35_19_23226632963_6aa2493305_o.jpg" "Date of Original 2015-03-27" "Original Data ID 2015:11:28 09:27:04"), United States Fish and Wildlife Service (USFWS) National Digital Library (http://digitalmedia.fws.gov or https://digitalmedia.fws.gov/digital/), United States Fish and Wildlife Service (http://www.fws.gov), United States Department of the Interior (http://www.doi.gov), Government of the United States of America (USA).

3. Third Row (Full size Original): George Gentry ("Item ID 339_GeorgeGentry_4-2009"), United States Fish and Wildlife Service (USFWS) National Digital Library (http://digitalmedia.fws.gov or https://digitalmedia.fws.gov/digital/), United States Fish and Wildlife Service (http://www.fws.gov), United States Department of the Interior (http://www.doi.gov), Government of the United States of America (USA).

4. Fourth Row (Full size Original, Huge, Large, Medium, or Other): Ryan Hagerty ("Item ID 7365"), United States Fish and Wildlife Service (USFWS) National Digital Library (http://digitalmedia.fws.gov or https://digitalmedia.fws.gov/digital/), United States Fish and Wildlife Service (http://www.fws.gov), United States Department of the Interior (http://www.doi.gov), Government of the United States of America (USA).

5. Fifth Row (Full size Original, Large, Medium, or Other): Steve Maslowski ("Original Data ID 316EC7F9-3B2A-4831-AC3BCC4DDD1CCDE3" "Original Filename D9C304C0-DF6E-47DD-A18FA82C08C3E19E.jpg"), United States Fish and Wildlife Service (USFWS) National Digital Library (http://digitalmedia.fws.gov or https://digitalmedia.fws.gov/digital/), United States Fish and Wildlife Service (http://www.fws.gov), United States Department of the Interior (http://www.doi.gov), Government of the United States of America (USA). A comment (observation) from USFWS: "Despite their tiny size, many of these birds fly nonstop across the Gulf of Mexico during fall and spring migration, a round-trip of more than 1,600 km."