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Extremely pale adult light-morph Red-tailed Hawk, Weld County, Colorado,
7/07. Some traits suggest Fuertes Red-tailed Hawk, but the range is way
off. Hmmm. |
Light-morph adult Western Red-tailed Hawk, Routt County, Colorado,
5/07. |
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Soaring juvenile Red-tailed Hawk, Pueblo County, Colorado,
3/07. |
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Pale adult light-morph Red Tailed Hawk, Morgan County,
Colorado, 3/07. |

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Perched juvenile Red-tailed Hawk, Weld County, Colorado, 1/07.
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Adult dark morph Red-tailed Hawk, Boulder County, Colorado, 12/06.
This is about as dark as the western (calurus) subspecies gets.
Note same bird perched below.
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Adult dark morph Red-tailed Hawk, Boulder County, Colorado,
12/06. This is about as dark as the western (calurus) subspecies
gets. Note same bird flying above. |
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Juvenile Red-tailed Hawk, perched and flying, Boulder
County, Colorado, 12/06. |
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Adult Red-tailed Hawk, Larimer County, Colorado, 10/06. |
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Juvenile Red-tailed Hawk, Florida Wash, Arizona, 8/06. |
Adult dark morph Harlan's/Western Red-tailed Hawk intergrade (?),
Boulder County, Colorado, 3/06. There is some difference of opinion
about this bird- maybe a straight-up Harlan's?
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Adult dark morph Harlan's/Western Red-tailed Hawk intergrade (?),
Boulder County, Colorado, 3/06. (same bird as above) |
Adult rufous morph Red-tailed Hawk, Dinosaur Ridge Hawkwatch, Jefferson
County, Colorado, 3/06.
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Adult Red-tailed Hawk, Dinosaur Ridge Hawkwatch, Jefferson County,
Colorado, 3/06. |
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Adult Red-tailed hawk, Boulder County, Colorado, 2/06. |
Adult Red-tailed hawk, Boulder County, Colorado, 2/06.
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Juvenile Red-tailed hawk, Boulder County, Colorado, 2/06. |
Juvenile Red-tailed Hawk, Krider's intergrade morph, E. Wyoming, 12/05.
It has also been suggested that this is a Juvenile light morph Harlan's
Hawk.
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Juvenile Red-tailed Hawk (same bird as above), E. Wyoming, 12/05 |
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Adult Red-tailed Hawk, Boulder County, Colorado, 12/05. |
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Juvenile Red-tailed Hawk, Boulder County, Colorado, 12/05. |
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Adult Red-tailed Hawk, Pueblo County, Colorado, 11/05. |
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Juvenile Red-tailed Hawk enjoying what appears to be a muskrat, Las
Vegas NWR, New Mexico, 1/05. |
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Juvenile Red-tailed Hawk, Garfield County, Colorado, 8/05. |
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Rufous-morph Red-tailed Hawk, Moffat County, Colorado, 8/05(!) |
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Juvenile Red-tailed Hawks, Garfield County, Colorado, 8/05. |
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Juvenile Red-tailed Hawk, Dinosaur Ridge Hawkwatch, Jefferson County,
Colorado, 3/05. |
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Adult Red-tailed Hawk, Boulder County, Colorado, 2/05. |
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Partially albino adult Red-tailed Hawk, Westminster, Colorado, 12/04.
This bird has apparently been a resident of the area since sometime in
2001. |
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Different view of the partially albino adult Red-tailed Hawk, West
minister, Colorado, 12/04. Note the normal bare-part coloration, some
rufous in the tail, and a few dark specks on the head & nape. A "true"
albino bird would have all white plumage, pink bare parts, & a pink
iris. |
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Juvenile Red-tailed Hawk, Boulder County, Colorado, 11/04. |
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Juvenile Red-tailed Hawk, Boulder County, Colorado, 11/04. |
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Adult dark-rufous morph & juvenile light-morph Red-tailed Hawks
grappling, Cherry Creek State Park, Arapahoe County, Colorado, 2/04. |
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Adult rufous-morph Red-tailed Hawk, Boulder, Colorado, 12/03. |
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Adult Dark-morph Red-tailed Hawk, Bent County, Colorado, 10/03. |
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Adult Dark-morph Red-tailed Hawk taking flight, Bent County, Colorado,
10/03. |
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Juvenile Red-tailed Hawk, Boulder County, Colorado, 10/03. |
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Soaring adult Red-tailed Hawk, Gunnison County, Colorado, 4/03. Sometimes
the red shows through more from below- I thought this bird was especially
well marked. |
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Nice pale western Red-tailed Hawk soaring over Boulder Creek, Colorado,
3/7/03. |
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Juvenile Red-tailed Hawk, Gunnison County, Colorado, 4/03. |
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Pale adult western Red-tailed Hawk, Longmont, Colorado, 3/9/03 (same
pale bird pictured below). |
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Same bird as above hunting the median between lanes of the Boulder-Longmont
Diagonal, 3/9/03. |
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View from above of western Red-tailed Hawk, Dinosaur Ridge Hawkwatch,
Morrison, CO, 3/9/03. |
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Very pale looking RTHA, Longmont, Colorado, 1/21/03.
With the help of Tony Leukering and Chris Wood, I believe this is a pale
eastern bird, with an unusually white supercillium. |
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Head detail of adult Red-tailed Hawk, Boulder, Colorado,
11/02. |
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Adult rufous morph (intermediate) Red-tailed
Hawk, Boulder County, Colorado, 11/27/02. |
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Adult rufous morph (intermediate) Red-tailed
Hawk, Boulder County, Colorado, 11/27/02. |
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Adult Red-tailed Hawk hunting from a post,
Boulder County, Colorado. |
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Success! Same adult light Red-tailed Hawk
flying off with freshly caught rodent. |