Band N58005 Bird captured by Terry L. Peterson Processed by Stacy J. Peterson & Terry L. Peterson Bill Corrugations: present (HY bird) Culmen: 17.60 mm Wing: 47.02 mm Tail: 26.5 mm Fat: 0 (scale 0-4) Mass: 3.7 g Gorget feathers (irridescent): 0 Rudeen Ranch, Power County August 4, 2004	Band N57400 Bird captured by bander in training Peggy L. Peterson Processed by Stacy J. Peterson & Peggy L. Peterson Bill Corrugations: 80% (HY bird) Culmen: 15.65 mm Wing: 44.07 mm Tail: 25.0 mm Fat: 2 (scale 0-4) Mass: 4.5 g Gorget feathers (irridescent): 2 High Valley, Valley County August 8, 2004	Band C11209 Bird captured by bander in training Greg D. Wardwell Processed by Stacy J. Peterson & Greg D. Wardwell Bill Corrugations: 90% (HY bird) Culmen: 15.46 mm Wing: 43.29 mm Tail: 24.0 mm Fat: 0 (scale 0-4) Mass: not taken Gorget feathers (irridescent): 0 High Valley, Valley County August 8, 2004
Sex uncertain. Pale throat suggests female of both species. Extensive rust on basal edge of retrices suggests male in Calliope. Wing length is longer than 92.4% of the HY male Black-chinneds measured in Idaho, which supports female...	Presumed HY-Male (presence of two large gorget feathers)	Sex uncertain, possibly male. Extensive spangling on throat more typical of HY-M Calliope and Black-chinneds. Shorter r1 (versus r5) shown here similar to what's seen in HY-M Calliope.
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If you have information that supports or refutes the information posted above, I'm very interested in hearing what you have to say. Please write your thoughts to: SJPeterson@aol.com

Helpful Literature

Baldridge, F.A. 1983. Plumage characteristics of juvenile Black-chinned Hummingbirds. Condor 85:102-103.
Baltosser, W.H. 1994. Age and sex determination in the Calliope Hummingbird. Western Birds 25:104-109.
Grayes, G.R. 1990. Systematics of the "Green-throated Sunangels" (Aves: Trochilidae): Valid taxa or hybrids? Proc. Biol. Soc. Wash. 103:6-25.

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