Frederick L. Mitchell Jr.:
Rivoli's Hummingbird... Madera Canyon
Frederick L. Mitchell Jr.:
Rivoli's Hummingbird... Madera Canyon, Arizona.
Frederick L. Mitchell Jr.:
Rufous Hummingbird... Sipe's White Mountain National Wildlife Area
Frederick L. Mitchell Jr.:
Violet-crowned Hummingbird... Patagonia, Arizona.
Frederick L. Mitchell Jr.:
Violet-crownd Hummingbird...Patagonia, Arizona
Frederick L. Mitchell Jr.:
Broad-billed Hummingbird... Madera Canyon
Frederick L. Mitchell Jr.:
Calliope Hummingbird...Sipe's Wildlife Area... White Mountains, Arizona
Frederick L. Mitchell Jr.:
Broad-tailed Hummingbird... Sipe's White Mountain National Wildlife Area
Frederick L. Mitchell Jr.:
Rivoli's Hummingbird... Madera Canyon, Az
Frederick L. Mitchell Jr.:
Anna's Hummingbird...Green Valley, Az
Frederick L. Mitchell Jr.:
Lucifer Humminbird... Ash Canyon, Mary Jo's place, near Sierra Vista, Az
Frederick L. Mitchell Jr.:
Black-chinned Hummingbird... Madera Canyon, Az
Frederick L. Mitchell Jr.:
Hummingbird at Penstemon flowers... Ash Canyon Bird Sanctuary
Frederick L. Mitchell Jr.:
Lucifer & Broad-billed Hummingbirds... Ash Canyon Bird Sanctuary
Frederick L. Mitchell Jr.:
Costa's Hummingbird... Tucson Mountains, AZ
Frederick L. Mitchell Jr.:
Broad-billed Hummingbird... Madera Canyon, Santa Rita Mountains, AZ
Frederick L. Mitchell Jr.:
Broad-billed Hummingbird... Madera Canyon, Santa Rita Mountains, AZ
Frederick L. Mitchell Jr.:
Broad-billed Hummingbird... Madera Canyon, Santa Rita Mountains, AZ
Frederick L. Mitchell Jr.:
Black-chinned Hummingbird... Madera Canyon, Santa Rita Mountains, AZ
Frederick L. Mitchell Jr.:
Broad-billed Hummingbird... Madera Canyon, Santa Rita Mountains, AZ
Frederick L. Mitchell Jr.:
Anna's Hummingbird... Sonoita Creek, Patagonia, AZ
Frederick L. Mitchell Jr.:
White-eared Hummingbird... Tucson Mountains, Pima County, Arizona
Frederick L. Mitchell Jr.:
White-eared Hummingbird... Tucson Mountains, Pima County, Arizona
Frederick L. Mitchell Jr.:
Rivoli's Hummingbird... Madera Canyon, Santa Rita Mountans, AZ
Frederick L. Mitchell Jr.:
Rufous Hummingbird, Sipe White Mountain Wildlife Area, AZ
Frederick L. Mitchell Jr.:
Calliope Hummingbird
Frederick L. Mitchell Jr.:
Lucifer Hummingbird, Ash Canyon, Huachuca Mountains, AZ
Frederick L. Mitchell Jr.:
Rivoli's Hummingbird, Madera Canyon, Santa Rita Mountains, AZ
Frederick L. Mitchell Jr.:
Broad-Billed Hummingbird, Madera Canyon, Santa Rita Mountains, AZ
Frederick L. Mitchell Jr.:
Costa's Hummingbird
