Mtn Home, Elmore County, ID 9/17/04
Mtn Home AFB, Elmore County, ID, 9/19/04
Mtn Home, Elmore County, ID, 9/20/04
View
and Face
(Open Wing)
BLACK-CHINNED HUMMINGBIRD -- Archilochus alexandri
Immature
(Hatch Year; HY) Females
A Photographic Comparision of Variation in Key Identifying Features in BCHU
PHOTOS (all © 2004 Stacy Jon Peterson; taken with Nikon Coolpix 4500, macro setting; contrast enhanced / sharpened, etc., on MS Picture It! Photo version 7.0)
HY female Black-chinneds can be difficult to tell from males of the same age for a variety of reasons. This photographic guide will show the variation in HY females of this species so that banders and astute observers can make more accurate determinations of the age and sex of Archilochus hummingbirds in the field.
| Feature | Band
C11739 Mtn Home, Elmore County, ID 9/17/04 |
Band
C11741 Mtn Home AFB, Elmore County, ID, 9/19/04 |
Band
C11743 Mtn Home, Elmore County, ID, 9/20/04 |
| Dorsal View |
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| Comments | Figure 1. . | Figure 2. | Figure 3. |
| Throat and Face |
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| Comments | Figure 4. . | Figure 5. | Figure 6. |
| Outer Retrices | |
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| Comments | Figure 7. . | Figure 8. | Figure 9. |
| Inner Primaries and p6 (Open Wing) |
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| Comments | Figure 10. | Figure 11. | Figure 12. |
| Folded Wing | |
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| Comments |
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
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