Verification of Unusual Sight Record
For Utah

Rec. # 2006-52(R78)
(Transcribed by M. G. Moody)

Common name:

Rivoli's Hummingbird [Magnificent Hummingbird]

Scientific name: Eugenes fulgens
Date: July 8, 1978
Time: 7:20 AM to 7:25 AM
Length of time observed:  
Number: 1
Age: female adult
Sex: female
Location: 0.5 mile south of Lytle Ranch, Beaver Dam Wash
County: Washington
Distance to bird: 20 feet estimated
Optical equipment: 7 x 35 binoculars
Light Conditions: clear sky, sun behind observers
Description:        Size of bird: ["Length was about 5 inches"]
(Description:)       Basic Shape:  
(Description:)  Overall Pattern:  
(Description:)            Bill Type: ["Bill was long and slender and dark."]
Field Marks and
Identifying Characteristics:
Length was about 5 inches.  Upper parts were green, wings were brownish, tail was green with white tips on the outer feathers.  Underparts were white. Bill was long and slender and dark.  There was a small white patch in back of the eye.
Song or call & method of delivery: not heard
Behavior: Bird was first observed flying along the lower edge of a 40 foot cottonwood, apparently looking for insects.  The bird then flew slowly toward the top of the tree and disappeared into the upper foliage.
Habitat: Cottonwoods, willows, tamarisk
Similar species and how
were they eliminated:
Black-chinned hummingbird is much smaller in size.  Many black-chins were feeding in the cottonwood tree where the rivoli was observed, so direct size comparison was made.
Blue-throated hummingbird has black tail with white tip.
Previous experience with
this & similar species:
I have observed rivolis and blue-throated humming birds many times in SE Arizona.  Black-chins are abundant in Utah.
References consulted:  
Description from: notes made after observation
Observer: Steven P. Hedges
Observer's address: 889 S. Cedar Knolls W., Cedar City, UT  84720
Observer's e-mail address:  
Other observers who independently identified this bird: Rod Lemon, Utah State Univ., Logan, Utah
Date prepared:  
Additional material: Original Record
Additional comments: